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Patent US2851089A successfully refreshed from Google Patents.
US2851089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lockable upholstery edge spring
Assignee: Kay Manufacturing Corp
•
Filing: 1957-10-21
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Granted: 1958-09-09
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Expires: 1977-10-21
Abstract
No abstract record available.
Inventors
- 👤 Walter M Pietruszka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2709483A
Cited
FR1135133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-08 | 1962-03-10 | 1962-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-08 | 1966-03-10 | 1966-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-08 | 1970-03-10 | 1970-09-09 | $7700.00 | Window Closed / Lapsed |