Patent US1470283A successfully refreshed from Google Patents.
US1470283A
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US
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Rear-axle extension device for tractors
Assignee: Individual
•
Filing: 1922-12-05
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Granted: 1923-10-09
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Expires: 1942-12-05
Abstract
No abstract record available.
Inventors
- 👤 John L Opitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:21
CPC Classifications
F; F16; F16D; F16D1/00; F16D1/06; F16D1/08; F16D1/09; F16D1/093; F16D1/095; F16D1/096; B; B60; B60B; B60B27/00; B60B27/06; B60B27/065; B60B35/00; B60B35/02; B60B35/10; B60B35/1009; B60B35/1027; B60B35/1072; B60B35/109; F16D1/0852; F16D1/0864; B60B2310/00; B60B2310/30; B60B2310/305; B60B2310/306; B60Y; B60Y2200/00; B60Y2200/20; B60Y2200/22; B60Y2200/221; Y; Y10; Y10S; Y10S180/00; Y10S180/906
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) | 1926-10-08 | 1927-04-09 | 1927-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-10-08 | 1931-04-09 | 1931-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-10-08 | 1935-04-09 | 1935-10-09 | $7700.00 | Window Closed / Lapsed |