Patent US1650458A successfully refreshed from Google Patents.
Patent US2644509A successfully refreshed from Google Patents.
US2644509A
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Floating motion cushion for vehicles and furniture
Assignee: Individual
•
Filing: 1945-03-13
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Granted: 1953-07-07
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Expires: 1965-03-13
Abstract
No abstract record available.
Inventors
- 👤 John M Dorton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:20
CPC Classifications
B; B60; B60N; B60N2/00; B60N2/70; B60N2/7023; B60N2/7035; B60N2/7047; B60N2/7058; A; A47; A47C; A47C7/00; A47C7/02; A47C7/28; A47C7/287
Claims Analysis
Total Claims: 0
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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) | 1956-07-06 | 1957-01-05 | 1957-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-06 | 1961-01-05 | 1961-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-06 | 1965-01-05 | 1965-07-07 | $7700.00 | Window Closed / Lapsed |