US2795617A
Expired / Lapsed
US
⏱️ 0.0 years remaining
US2795617A - - Google Patents
Assignee: —
•
Filing: —
•
Granted: 1957-06-11
•
Expires: 1974-06-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:20
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/51; C07C45/54; C07C45/45; C07C45/455; C07C45/61; C07C45/65; C07C49/00; C07C49/04; C07C49/20; C07C49/203; C07C69/00; C07C69/66; C07C69/67; C07C69/716
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A PROCESS OF MAKING A KETON WHICH COMPRISES HEATING AN ESTER OF THE FORMULA
Claim 2
Dependent Claim
14 words
A PROCESS OF MAKING A KETON WHICH COMPRISES HEATING AN ESTER 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) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |