Patent US1503348A successfully refreshed from Google Patents.
US1503348A
Expired / Lapsed
US
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Attachment for tractors
Assignee: Individual
•
Filing: 1923-08-20
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Granted: 1924-07-29
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Expires: 1943-08-20
Abstract
No abstract record available.
Inventors
- 👤 Henry F Bruhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:52
CPC Classifications
B; B62; B62D; B62D1/00; B62D1/02; B62D1/04; B62D1/043; B25; B25G; B25G3/00; B25G3/02; B25G3/12; B25G3/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20834; Y10T74/20864
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) | 1927-07-29 | 1928-01-28 | 1928-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-29 | 1932-01-28 | 1932-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-29 | 1936-01-28 | 1936-07-29 | $7700.00 | Window Closed / Lapsed |