US2847157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary device
Assignee: Svenska Rotor Maskiner AB
•
Filing: 1954-10-26
•
Granted: 1958-08-12
•
Expires: 1974-10-26
Abstract
No abstract record available.
Inventors
- 👤 Nilsson Hans Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:39
CPC Classifications
F; F01; F01C; F01C1/00; F01C1/08; F01C1/12; F01C1/14; F01C1/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US951627A
Cited
US1542614A
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US1418741A
Cited
GB437042A
Cited
US2111568A
Cited
US2220588A
Cited
US2338065A
Cited
US2407753A
Cited
US2279136A
Cited
US2633807A
Cited
US2622787A
Cited
US2590561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |