US2797086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control apparatus
Assignee: Samcoe Holding Corp
•
Filing: 1952-10-04
•
Granted: 1957-06-25
•
Expires: 1972-10-04
Abstract
No abstract record available.
Inventors
- 👤 Cohn Joseph
- 👤 Jules G Walter
- 👤 Cohn Eugene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:03
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B13/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US661295A
Cited
US1854604A
Cited
US2427943A
Cited
US2482497A
Cited
GB613471A
Cited
US2637991A
Cited
US2521440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-24 | 1960-12-24 | 1961-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-24 | 1964-12-24 | 1965-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-24 | 1968-12-24 | 1969-06-25 | $7700.00 | Window Closed / Lapsed |