US2133279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic suspension device
Assignee: Individual
•
Filing: 1936-01-03
•
Granted: 1938-10-18
•
Expires: 1956-01-03
Abstract
No abstract record available.
Inventors
- 👤 Roy W Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
B; B60; B60G; B60G11/00; B60G11/26; B60G11/27; B60G17/00; B60G17/015; B60G17/0152; B60G17/0155; B60G17/02; B60G17/04; B60G17/052; B60G2200/00; B60G2200/10; B60G2200/14; B60G2200/144; B60G2202/00; B60G2202/10; B60G2202/15; B60G2202/152; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7866
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-10-17 | 1942-04-18 | 1942-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-17 | 1946-04-18 | 1946-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-17 | 1950-04-18 | 1950-10-18 | $7700.00 | Window Closed / Lapsed |