US2491635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coolant device for tools
Assignee: Leland Gifford Co
•
Filing: 1947-05-09
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Granted: 1949-12-20
•
Expires: 1967-05-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward K Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:47
CPC Classifications
B; B23; B23Q; B23Q11/00; B23Q11/10; B23Q11/1084; B23B; B23B47/00; B23B47/28; B23B47/281; B23B49/00; B23B49/04; Y; Y10; Y10S; Y10S29/00; Y10S29/054; Y10S29/092; Y10T; Y10T408/00; Y10T408/44; Y10T408/55
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US932060A
Cited
US1196572A
Cited
US1422031A
Cited
US1464005A
Cited
US1791532A
Cited
US2418646A
Cited
US2414348A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-19 | 1953-06-20 | 1953-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-19 | 1957-06-20 | 1957-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-19 | 1961-06-20 | 1961-12-20 | $7700.00 | Window Closed / Lapsed |