Patent US3939849A successfully refreshed from Google Patents.
Patent US2793375A successfully refreshed from Google Patents.
US2793375A
Expired / Lapsed
US
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Self-rocking hammock
Assignee: Individual
•
Filing: 1953-07-31
•
Granted: 1957-05-28
•
Expires: 1973-07-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Macarthur Wardell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:19
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/22; A45F3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1813046A
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FR735496A
Cited
GB451968A
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US2150465A
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US2475289A
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US2531140A
Cited
US2651058A
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US2759761A
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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) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |