US1633237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-pin extractor
Assignee: Individual
•
Filing: 1923-02-07
•
Granted: 1927-06-21
•
Expires: 1943-02-07
Abstract
No abstract record available.
Inventors
- 👤 James G Whitlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:07
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/08; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53796; Y10T29/53809; Y10T29/53817
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) | 1930-06-20 | 1930-12-20 | 1931-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-06-20 | 1934-12-20 | 1935-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-06-20 | 1938-12-20 | 1939-06-21 | $7700.00 | Window Closed / Lapsed |