Patent US2667621A successfully refreshed from Google Patents.
US2970638A
Expired / Lapsed
US
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Seat and backrest construction
Assignee: Individual
•
Filing: 1958-01-06
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Granted: 1961-02-07
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Expires: 1978-01-06
Abstract
No abstract record available.
Inventors
- 👤 Halter Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:48
CPC Classifications
A; A47; A47C; A47C3/00; A47C3/12; A47C7/00; A47C7/02; A47C7/029; A47C7/16; A47C7/36; A47C7/40; A47C7/46; B; B60; B60N; B60N2/00; B60N2/70; Y; Y10; Y10S; Y10S297/00; Y10S297/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1917264A
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FR738594A
Cited
US2131963A
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US2263209A
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US2659418A
Cited
US2769185A
Cited
US2847061A
Cited
US2819712A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |