Patent US2360925A successfully refreshed from Google Patents.
Patent US3952134A successfully refreshed from Google Patents.
US3952134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous filament product
Assignee: Celanese Corp
•
Filing: 1971-06-15
•
Granted: 1976-04-20
•
Expires: 1991-06-15
Abstract
Abstract A crimped deregistered tow of continuous filaments wherein the filaments are coated with a silicone finish which is substantially free of antistatic agents and the products produced therefrom such as pillow, sleeping bags, furniture cushions and the like. BACKGROUND OF THE INVENTION
Inventors
- 👤 George A. Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:28
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2962
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
25 words
A crimped deregistered tow of continuous filaments wherein said filaments are coated with a silicone finish consisting essentially of a free of an antistatic agent.
Claim 2
Dependent Claim
25 words
A crimped deregistered tow of continuous filaments wherein said filaments are coated with a silicone finish consisting essentially of a free of an antistatic agent.
Claim 3
Dependent Claim
14 words
The product of claim 1 wherein the tow is comprised of cellulose acetate filaments.
Claim 4
Dependent Claim
13 words
The product of claim 1 wherein the tow is comprised of polyester filaments.
Claim 5
Dependent Claim
24 words
The product of claim 1 wherein the individual filaments of the tow are coated with about 0.1 to 1 percent of a hydrophobic silicone.
Claim 6
Dependent Claim
19 words
The product of claim 1 wherein the tow is spread to at least twice its original width after deregistration.
Claim 7
Dependent Claim
22 words
The product of claim 5 wherein the tow is spread about 2.5 to about 10 times its original width after the deregistration.
Claim 8
Dependent Claim
33 words
The product of claim 1 wherein the tow is spread to a width of 2.5 to about 10 times its original width after deregistration and is in the form of a cushioning product.
Claim 9
Dependent Claim
12 words
The product of claim 7 wherein the cushioning product is a pillow.
Claim 10
Dependent Claim
13 words
The product of claim 7 wherein the cushioning product is a sleeping bag.
Claim 11
Dependent Claim
13 words
The product of claim 7 wherein the cushioning product is a mattress pad.
Claim 12
Dependent Claim
71 words
The product of claim 1 wherein the tow of continuous filaments is coated with about 0.1 to 1 percent of a hydrophobic lower alkyl polysiloxane, said tow initially containing about 3 to 50 crimps per inch and being of a denier per filament in the range of about 0.5 to 25, said deregistered tow being spread to a width of about 2 to 10 times its original width prior to deregistration.
Claim 13
Dependent Claim
13 words
The product of claim 11 wherein the tow is comprised of polyester filaments.
Claim 14
Dependent Claim
14 words
The product of claim 11 wherein the tow is comprised of cellulose acetate filaments.
Claim 15
Dependent Claim
23 words
The product of claim 11 wherein the tow is coated with about 0.2 to 0.5 per cent of a hydrophobic lower alkyl polysiloxane.
Claim 16
Dependent Claim
26 words
The product of claim 11 wherein the hydrophobic lower alkyl polysiloxane comprises a major proportion of methyl hydrogen polysiloxane and a minor proportion of dimethyl polysiloxane.
References Cited (Backward Citations)
US3126095A
Cited
US2702276A
Cited
US2794480A
Cited
US3226773A
Cited
US3156016A
Cited
US3271189A
Cited
US3251794A
Cited
US3499810A
Cited
US3488217A
Cited
US3639154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |