Patent US1022720A successfully refreshed from Google Patents.
US1022720A
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Coupling attachment and testing machine.
Assignee: LARKIN Manufacturing Co
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Filing: 1909-10-23
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Granted: 1912-04-09
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Expires: 1929-10-23
Abstract
No abstract record available.
Inventors
- 👤 John P Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:34
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/10; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5367
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) | 1915-04-09 | 1915-10-09 | 1916-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-04-09 | 1919-10-09 | 1920-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-04-09 | 1923-10-09 | 1924-04-09 | $7700.00 | Window Closed / Lapsed |