Patent US2127050A successfully refreshed from Google Patents.
US937526A
Expired / Lapsed
US
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Extension-wrench for operating tube-expanders or the like.
Assignee: Individual
•
Filing: 1909-02-03
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Granted: 1909-10-19
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Expires: 1929-02-03
Abstract
No abstract record available.
Inventors
- 👤 Frank M Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:00
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/25; B23Q1/44; B23Q1/56; B23Q1/60; B23Q1/62; B23Q1/621; B23Q1/626; B21; B21D; B21D5/00; B21D5/02; B21D5/029; Y; Y10; Y10T; Y10T29/00; Y10T29/50
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) | 1912-10-18 | 1913-04-19 | 1913-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-10-18 | 1917-04-19 | 1917-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-10-18 | 1921-04-19 | 1921-10-19 | $7700.00 | Window Closed / Lapsed |