US2893808A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable illuminated collapsible speaker's stand
Assignee: Individual
•
Filing: 1956-07-09
•
Granted: 1959-07-07
•
Expires: 1976-07-09
Abstract
No abstract record available.
Inventors
- 👤 Robert C Waterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:03
CPC Classifications
A; A47; A47B; A47B19/00; A47B19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753050A
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US1167046A
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US1484586A
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US1969306A
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US2063224A
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US2151259A
Cited
US2231235A
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US2223196A
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US2388353A
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US2597970A
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US2640748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-06 | 1963-01-05 | 1963-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-06 | 1967-01-05 | 1967-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-06 | 1971-01-05 | 1971-07-07 | $7700.00 | Window Closed / Lapsed |