US2896901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal bracket
Assignee: LOUDSPEAKERS Inc, University of
•
Filing: 1957-04-02
•
Granted: 1959-07-28
•
Expires: 1977-04-02
Abstract
No abstract record available.
Inventors
- 👤 Sidney E Levy
- 👤 Bernard C Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:48
CPC Classifications
F; F21; F21V; F21V21/00; F21V21/14; F21V21/30; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/282; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US365158A
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US448028A
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US750675A
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US948326A
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FR414428A
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US1182123A
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US2526070A
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US2617619A
Cited
US2789458A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |