US2709692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyarylenesiloxane compositions
Assignee: Westinghouse Electric Corp
•
Filing: 1952-10-22
•
Granted: 1955-05-31
•
Expires: 1972-10-22
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Gainer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:38
CPC Classifications
C; C08; C08G; C08G77/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2936; Y10T428/2971
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A PARTIALLY CONDENSED SILOXANE POLYMER COMPRISING THE RECURRING GROUP
Claim 2
Dependent Claim
9 words
A PARTIALLY CONDENSED SILOXANE POLYMER COMPRISING THE RECURRING GROUP
References Cited (Backward Citations)
US2557931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-05-30 | 1958-11-29 | 1959-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-30 | 1962-11-29 | 1963-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-30 | 1966-11-29 | 1967-05-31 | $7700.00 | Window Closed / Lapsed |