US2950775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust noise reducing and air diffusing means for pneumatic motors
Assignee: Aro Equipment Corp
•
Filing: 1958-01-13
•
Granted: 1960-08-30
•
Expires: 1978-01-13
Abstract
No abstract record available.
Inventors
- 👤 Robert E Zwayer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:40
CPC Classifications
B; B25; B25F; B25F5/00; B23; B23B; B23B45/00; B23B45/04; Y; Y10; Y10S; Y10S173/00; Y10S173/02; Y10S415/00; Y10S415/904
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) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |