US2787797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-releasing tap holder with toggle link clutch element
Assignee: Individual
•
Filing: 1955-03-04
•
Granted: 1957-04-09
•
Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Kalafsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:43
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/44; B23G1/46; Y; Y10; Y10T; Y10T408/00; Y10T408/73; Y10T408/75; Y10T74/00; Y10T74/21; Y10T74/2133; Y10T74/2135
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) | 1960-04-08 | 1960-10-08 | 1961-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-08 | 1964-10-08 | 1965-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-08 | 1968-10-08 | 1969-04-09 | $7700.00 | Window Closed / Lapsed |