Patent US2692256A successfully refreshed from Google Patents.
US2692256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of vinyloxyalkoxy compounds and unsaturated carboxylic acids and polymers thereof
Assignee: Rohm and Haas Co
•
Filing: 1951-03-09
•
Granted: 1954-10-19
•
Expires: 1971-03-09
Abstract
No abstract record available.
Inventors
- 👤 La Verne N Bauer
- 👤 Harry T Neher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:48
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/007; C07C69/01; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C69/52; C07C69/533; C07C69/54; C07C69/56; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/40; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
AS NEW CHEMICAL SUBSTANCES, COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
8 words
AS NEW CHEMICAL SUBSTANCES, COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
US2395812A
Cited
US2350325A
Cited
US2396434A
Cited
US2462400A
Cited
US2541142A
Cited
US2582911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |