US3383933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine support and belt drive apparatus
Assignee: RJ Enstrom Corp
•
Filing: 1966-12-06
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Granted: 1968-05-21
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Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Paul L Shultz
- 👤 Robert J Bretl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:19
CPC Classifications
F; F16; F16H; F16H7/00; F16H7/08; F16H7/10; F16H7/12; F16H7/1254; F16H7/1281; B; B64; B64C; B64C27/00; B64C27/04; B64C27/12; B64C27/14; F16H2007/0802; F16H2007/0808; Y; Y10; Y10S; Y10S416/00; Y10S416/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3253474A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |