US3030147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spring seat
Assignee: Simmons USA Corp
•
Filing: 1958-02-12
•
Granted: 1962-04-17
•
Expires: 1978-02-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Kinnebrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:45
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/02; A47C7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1753985A
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US2106066A
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US2319431A
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US2437119A
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US2570409A
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US2636544A
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US2609865A
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US2682295A
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US2770814A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |