US3331813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxanes containing fluoroalkoxyalkyl groups
Assignee: Individual
•
Filing: 1966-02-10
•
Granted: 1967-07-18
•
Expires: 1986-02-10
Abstract
No abstract record available.
Inventors
- 👤 Allen G Pittman
- 👤 William L Wasley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:59
CPC Classifications
C; C08; C08G; C08G77/00; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A SILOXANE POLYMER WHICH CONTAINS RECURRING UNITS OF THE AVERAGE FORMULA
Claim 2
Dependent Claim
11 words
A SILOXANE POLYMER WHICH CONTAINS RECURRING UNITS OF THE AVERAGE FORMULA
Claim 3
Dependent Claim
18 words
A PROCESS FOR PREPARING A SILOXANE POLYMER WHICH COMPRISES SUBJECTING TO HYDROLYTIC POLYMERIZATION A SILANE OF THE FORMULA
Claim 4
Dependent Claim
18 words
A PROCESS FOR PREPARING A SILOXANE POLYMER WHICH COMPRISES SUBJECTING TO HYDROLYTIC POLYMERIZATION A SILANE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |