US2074340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle springing system
Assignee: Transit Research Corp
•
Filing: 1933-04-17
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Granted: 1937-03-23
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Expires: 1953-04-17
Abstract
No abstract record available.
Inventors
- 👤 Emil H Piron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:31
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/36; F16F1/38; F16F1/3807; B; B61; B61F; B61F3/00; B61F3/02; B61F3/04; B61F5/00; B61F5/02; B61F5/16; B61F5/20
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) | 1940-03-22 | 1940-09-21 | 1941-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-22 | 1944-09-21 | 1945-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-22 | 1948-09-21 | 1949-03-23 | $7700.00 | Window Closed / Lapsed |