US3258994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed changing device
Assignee: Individual
•
Filing: 1963-06-03
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Granted: 1966-07-05
•
Expires: 1983-06-03
Abstract
No abstract record available.
Inventors
- 👤 Alex M Gorfin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:58
CPC Classifications
F; F16; F16H; F16H1/00; F16H1/28; F16H1/32; F16H1/321; F16H49/00; F16H49/001
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A ROTARY SPEED CHANGER COMPRISING ROTARY GEAR MEANS PROVIDED WITH BEVELED TEETH, ACTUATING MEANS PROVIDED WITH COMPLEMENTARY BEVELED TEETH FOR ENGAGEMENT WITH SAID GEAR TEETH, MEANS MOUNTING SAID ACTUATING MEANS AGAINST ROTARY MOVEMENT AND FOR COMPOSITE ROCKING AND ECCENTRIC MOTION OF SAID COMPLEMENTARY TEETH TO EFFECT SAID ENGAGEMENT AND FOR DISENGAGEMENT WITH SAID GEAR TEETH, THE NUMBER OF GEAR TEETH DIFFERING FROM THE NUMBER OF SAID COMPLEMENTARY TEETH, AND ROTARY ECCENTRIC MEANS OPERABLE ON SAID ACTUATING MEANS TO EFFECT SAID COMPOSITE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |