US3432089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Screw rotor machine for an elastic working medium
Assignee: Svenska Rotor Maskiner AB
•
Filing: 1966-10-11
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Granted: 1969-03-11
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Expires: 1986-10-11
Abstract
No abstract record available.
Inventors
- 👤 Lauritz Benedictus Schibbye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:52
CPC Classifications
F; F01; F01C; F01C20/00; F01C20/10; F01C20/12; F02; F02B; F02B53/00; F04; F04C; F04C28/00; F04C28/10; F04C28/12; F04C28/125; F02B2730/00; F02B2730/05; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE16041E
Cited
US1066442A
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US2507945A
Cited
US2639721A
Cited
US2936949A
Cited
US2915045A
Cited
US3045447A
Cited
GB950057A
Cited
US3073513A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |