Patent US3505894A successfully refreshed from Google Patents.
US3505894A
Expired / Lapsed
US
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Reversible shaft transmission
Assignee: Individual
•
Filing: 1968-08-08
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Granted: 1970-04-14
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Expires: 1988-08-08
Abstract
No abstract record available.
Inventors
- 👤 Henry T Halibrand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:27
CPC Classifications
B; B63; B63H; B63H23/00; B63H23/02; B63H23/08; F; F16; F16H; F16H1/00; F16H1/02; F16H1/04; F16H1/12; F16H1/14; F16H3/00; F16H3/02; F16H3/08; F16H3/14; F16H3/145; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19484; Y10T74/19498; Y10T74/19642; Y10T74/1966; Y10T74/19665; Y10T74/21; Y10T74/2186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548917A
Cited
US2708416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |