US2642929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat spring
Assignee: Stubnitz Greene Spring Corp
•
Filing: 1948-08-19
•
Granted: 1953-06-23
•
Expires: 1968-08-19
Abstract
No abstract record available.
Inventors
- 👤 Stubnitz Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:24
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/34; A47C7/347
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US604368A
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US611131A
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US742251A
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US813923A
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US803933A
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US1067193A
Cited
US1051466A
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GB228253A
Cited
FR673637A
Cited
US1866664A
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FR40564E
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US2125519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |