US3092610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyepoxy ethers of polyhydric phenols and cured products obtained therefrom
Assignee: Shell USA Inc
•
Filing: 1958-06-23
•
Granted: 1963-06-04
•
Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Carl G Schwarzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:03
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/20; C08G59/32; C08G59/3218; C07; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
ETHERS OF (A) PHENOLS OF THE STRUCTURE
Claim 2
Dependent Claim
7 words
ETHERS OF (A) PHENOLS OF THE STRUCTURE
References Cited (Backward Citations)
US2333548A
Cited
US2429556A
Cited
US2615008A
Cited
US2754335A
Cited
US2668807A
Cited
US2871221A
Cited
US2806016A
Cited
US2938875A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |