Patent US5206503A successfully refreshed from Google Patents.
US1810752A
Expired / Lapsed
US
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Combination grab dog and taper
Assignee: BROPHY AUTOMATIC AIR DOG Corp
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Filing: 1927-01-22
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Granted: 1931-06-16
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Expires: 1947-01-22
Abstract
No abstract record available.
Inventors
- 👤 James M Brophy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:58
CPC Classifications
B; B27; B27B; B27B29/00; B27B29/08; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6492; Y10T83/6499; Y10T83/6508; Y10T83/6515; Y10T83/6518; Y10T83/652; Y10T83/6521; Y10T83/6523; Y10T83/6532
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) | 1934-06-15 | 1934-12-15 | 1935-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-15 | 1938-12-15 | 1939-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-15 | 1942-12-15 | 1943-06-16 | $7700.00 | Window Closed / Lapsed |