US3504565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spur gear system of crossed axes and method of manufacturing same
Assignee: Gleason Hurth Tooling GmbH
•
Filing: 1968-06-25
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Granted: 1970-04-07
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Expires: 1988-06-25
Abstract
No abstract record available.
Inventors
- 👤 Gerd Lichtenauer
- 👤 Herbert Loos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:57
CPC Classifications
B; B23; B23F; B23F19/00; B23F19/002; B23F19/06; F; F16; F16H; F16H55/00; F16H55/02; F16H55/08; F16H55/0806; F16H55/082; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49467; Y10T29/49476; Y10T409/00; Y10T409/10; Y10T409/101431; Y10T409/105724; Y10T74/00; Y10T74/19; Y10T74/19949; Y10T74/19953; Y10T74/19963; Y10T74/19972
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2908226A
Cited
US2935887A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-06 | 1973-10-06 | 1974-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-06 | 1977-10-06 | 1978-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-06 | 1981-10-06 | 1982-04-07 | $7700.00 | Window Closed / Lapsed |