Patent US3540111A successfully refreshed from Google Patents.
US3540111A
Expired / Lapsed
US
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Method of moving crossarms
Assignee: JAMES C WAINWRIGHT
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Filing: 1967-12-27
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Granted: 1970-11-17
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Expires: 1987-12-27
Abstract
No abstract record available.
Inventors
- 👤 James C Wainwright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:00
CPC Classifications
E; E04; E04H; E04H12/00; E04H12/18; E04H12/187; B; B21; B21H; B21H7/00; E04H12/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/49623; Y10T29/49631; Y10T29/49718; Y10T29/49721; Y10T29/4973
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1877241A
Cited
US1928280A
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US2606952A
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US2949271A
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US3130958A
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US3170673A
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US3132415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |