Patent US2829706A successfully refreshed from Google Patents.
US2829706A
Expired / Lapsed
US
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Spring seat construction
Assignee: Individual
•
Filing: 1954-09-02
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Granted: 1958-04-08
•
Expires: 1974-09-02
Abstract
No abstract record available.
Inventors
- 👤 George M Markle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:18
CPC Classifications
A; A47; A47C; A47C23/00; A47C23/02; B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US628498A
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US747002A
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US1632936A
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US1430249A
Cited
FR763825A
Cited
US2034109A
Cited
US2245051A
Cited
US2341419A
Cited
FR893548A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-07 | 1961-10-07 | 1962-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-07 | 1965-10-07 | 1966-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-07 | 1969-10-07 | 1970-04-08 | $7700.00 | Window Closed / Lapsed |