US1582669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw-thread-cutting means for bench lathes
Assignee: Pratt and Whitney Co Inc
•
Filing: 1923-02-05
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Granted: 1926-04-27
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Expires: 1943-02-05
Abstract
No abstract record available.
Inventors
- 👤 Henry E Durkee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:02
CPC Classifications
B; B23; B23G; B23G3/00; B23G3/02; B23G3/04; Y; Y10; Y10T; Y10T82/00; Y10T82/20; Y10T82/205; Y10T82/25; Y10T82/2531; Y10T82/2537; Y10T82/2539
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) | 1929-04-26 | 1929-10-26 | 1930-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-04-26 | 1933-10-26 | 1934-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-04-26 | 1937-10-26 | 1938-04-27 | $7700.00 | Window Closed / Lapsed |