US3571853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic pinning of extruded polymeric film
Assignee: EIDP Inc
•
Filing: 1969-05-12
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Granted: 1971-03-23
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Expires: 1989-05-12
Abstract
Abstract In apparatus for application of an electrostatic charge to cause a dielectric web to adhere to a grounded roll, the improvement comprising movable insulating tubes over the terminal supports and the electrode wire.
Inventors
- 👤 Melton Orlander Denton
- 👤 Samuel Eddy Meggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:32
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/911; B29C48/9135; B29C48/915; B29C48/9165; B29C48/03; B29C48/07; B29C48/08; B29C48/914
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
13 words
An apparatus of claim 1 wherein the sleeve consists essentially of fluorocarbon resin.
Claim 2
Dependent Claim
14 words
An apparatus of claim 1 wherein the sleeve consists essentially of a hard rubber.
Claim 3
Dependent Claim
34 words
An apparatus of claim 1 wherein the rods consist essentially of brass and have a diameter of about one-eighth inch and wherein the rods are electrically insulated by an outer layer of fluorocarbon resin.
References Cited (Backward Citations)
US3223757A
Cited
US3427687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |