US2779429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound absorbing structure
Assignee: EDNA MAZER ROSENBERG
•
Filing: 1953-07-17
•
Granted: 1957-01-29
•
Expires: 1973-07-17
Abstract
No abstract record available.
Inventors
- 👤 Mazer Fannie
- 👤 Simon Ruth Mazer
- 👤 Rosenberg Edna Mazer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:21
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/82; E04B1/84; E04B1/8409; E04B2001/742; E04B2001/747; E04B2001/8263; E04B2001/8281; E04B2001/8414; E04B2001/8457; E04B2001/8461; E04B2001/8471; E04B2001/8476; E04B2001/848; E04B2001/8485; E04B2001/849; E04B2001/8495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2413331A
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US2341305A
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US2357560A
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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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |