Patent US3309825A successfully refreshed from Google Patents.
US3309825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resiliently mounted plaster partition system for buildings
Assignee: Individual
•
Filing: 1964-01-24
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Granted: 1967-03-21
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Expires: 1984-01-24
Abstract
No abstract record available.
Inventors
- 👤 Daniel L Zinn
- 👤 Raymond W Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:31
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7453; E04B2/7457
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2013693A
Cited
US1975470A
Cited
US2047145A
Cited
GB540302A
Cited
US2381635A
Cited
US3017672A
Cited
US2947041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-20 | 1970-09-19 | 1971-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-20 | 1974-09-19 | 1975-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-20 | 1978-09-19 | 1979-03-21 | $7700.00 | Window Closed / Lapsed |