Patent FR703633A successfully refreshed from Google Patents.
Patent US2541307A successfully refreshed from Google Patents.
Patent US3133596A successfully refreshed from Google Patents.
US3133596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary device and associated method
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1961-07-19
•
Granted: 1964-05-19
•
Expires: 1981-07-19
Abstract
No abstract record available.
Inventors
- 👤 Berliner Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:07
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/34; B; B63; B63H; B63H1/00; B63H1/02; B63H1/12; B63H1/14; B63H1/20; B63H1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN ARTICLE OF MANUFACTURE COMPRISING A MEMBER OF POLYESTER RESIN, GLASS FIBRE REINFORCEMENTS EMBEDDED WITHIN SAID POLYESTER RESIN, SAID MEMBER INCLUDING A HOLLOW HUB AND HOLLOW BLADES INTEGRALLY COUPLED TO DEFINE A CONTINUOUS INTERNAL HOLLOW CLOSED CHAMBER.
Claim 2
Dependent Claim
37 words
AN ARTICLE OF MANUFACTURE COMPRISING A MEMBER OF POLYESTER RESIN, GLASS FIBRE REINFORCEMENTS EMBEDDED WITHIN SAID POLYESTER RESIN, SAID MEMBER INCLUDING A HOLLOW HUB AND HOLLOW BLADES INTEGRALLY COUPLED TO DEFINE A CONTINUOUS INTERNAL HOLLOW CLOSED CHAMBER.
References Cited (Backward Citations)
US1532158A
Cited
US1830985A
Cited
GB596636A
Cited
US2379793A
Cited
GB561716A
Cited
US2454200A
Cited
US2631678A
Cited
US2630868A
Cited
US2857094A
Cited
US3033293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-19 | 1967-11-18 | 1968-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-19 | 1971-11-18 | 1972-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-19 | 1975-11-18 | 1976-05-19 | $7700.00 | Window Closed / Lapsed |