US2431604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and machine for generating rotors for elastic fluid mechanism
Assignee: TURBO ENGINEERING Corp
•
Filing: 1943-03-26
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Granted: 1947-11-25
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Expires: 1963-03-26
Abstract
No abstract record available.
Inventors
- 👤 Birmann Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:11
CPC Classifications
B; B23; B23C; B23C3/00; B23C3/16; Y; Y10; Y10T; Y10T29/00; Y10T29/37; Y10T29/49; Y10T29/49316; Y10T29/4932; Y10T29/49325; Y10T29/49329; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/30112; Y10T409/302968; Y10T409/303248; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US630325A
Cited
US1006280A
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GB191117691A
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US1555530A
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US1959703A
Cited
GB402768A
Cited
US2092142A
Cited
FR837890A
Cited
US2276404A
Cited
US2285266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |