Patent US2531475A successfully refreshed from Google Patents.
Patent US5248906A successfully refreshed from Google Patents.
Patent US3210327A successfully refreshed from Google Patents.
US3210327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Symmetrical diol alkyl esters of acrylic acids and polymers thereof
Assignee: Gulf Oil Corp
•
Filing: 1962-05-23
•
Granted: 1965-10-05
•
Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Francis R Galiano
- 👤 Gerald J Mantell
- 👤 Rankin David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:35
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/67; C08G18/675; C08G63/00; C08G63/02; C08G63/12; C08G63/52
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
10 words
A SYMMETRICAL, POLYMERIZABLE 1,3-PROPANE DIOL REPRESENTED BY THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
10 words
A SYMMETRICAL, POLYMERIZABLE 1,3-PROPANE DIOL REPRESENTED BY THE FOLLOWING FORMULA:
Claim 3
Dependent Claim
19 words
A COPOLYMER OF A POLYMERIZABLE COMPOUND OF CLAIM 1 AND A COPOLYMERIZABLE ETHYLENICALLY UNSATURATED MONOMER OF THE FORMULA H2C=C<.
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |