US2834792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition products of 1-acyloxy-3-buten-2-ones
Assignee: GAF Chemicals Corp
•
Filing: 1952-12-31
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Granted: 1958-05-13
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Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph M Wilkinson
- 👤 Jr Edgar E Renfrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:21
CPC Classifications
C; C07; C07C; C07C321/00; C07C69/00; C07C69/003; C09; C09B; C09B1/00; C09B1/16; C09B1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND 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) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |