US3537333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welded hollow crankshaft for a multicylinder piston-engine
Assignee: Rolls Royce Solutions GmbH
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Filing: 1968-11-18
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Granted: 1970-11-03
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Expires: 1988-11-18
Abstract
No abstract record available.
Inventors
- 👤 Richard Seifert
- 👤 Karl Just
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:02
CPC Classifications
F; F16; F16C; F16C3/00; F16C3/04; F16C3/06; F16C3/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49286; Y10T74/00; Y10T74/21; Y10T74/2173; Y10T74/2174; Y10T74/2175; Y10T74/2183; Y10T74/2185
Claims Analysis
Total Claims: 0
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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) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |