US1666645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of camphor
Assignee: RAYMOND F BACON
•
Filing: 1927-03-07
•
Granted: 1928-04-17
•
Expires: 1947-03-07
Abstract
No abstract record available.
Inventors
- 👤 Frieden Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:03
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/81; C07C45/82; C07C45/83; C07C45/85
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1931-04-17 | 1931-10-17 | 1932-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-04-17 | 1935-10-17 | 1936-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-04-17 | 1939-10-17 | 1940-04-17 | $7700.00 | Window Closed / Lapsed |