US2964778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Caster
Assignee: DUO BED CORP
•
Filing: 1956-10-08
•
Granted: 1960-12-20
•
Expires: 1976-10-08
Abstract
No abstract record available.
Inventors
- 👤 Frey Louis Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:31
CPC Classifications
B; B60; B60B; B60B33/00; B60B33/0002; B60B33/04; B60B33/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US475136A
Cited
US1649529A
Cited
US1052454A
Cited
US1162627A
Cited
US1247827A
Cited
US1435371A
Cited
US1745992A
Cited
US2532806A
Cited
US2721668A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |