Patent US3554185A successfully refreshed from Google Patents.
Patent US971583A successfully refreshed from Google Patents.
US971583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumatic spring.
Assignee: Individual
•
Filing: 1909-08-12
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Granted: 1910-10-04
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Expires: 1929-08-12
Abstract
No abstract record available.
Inventors
- 👤 Benjamin Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:39
CPC Classifications
F; F16; F16F; F16F9/00; F16F9/02; F16F9/04; F16F9/05; B; B60; B60G; B60G2202/00; B60G2202/30; B60G2202/31; B60G2202/314
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) | 1913-10-03 | 1914-04-04 | 1914-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-10-03 | 1918-04-04 | 1918-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-10-03 | 1922-04-04 | 1922-10-04 | $7700.00 | Window Closed / Lapsed |