US3476302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wallboard attachment and apparatus therefor
Assignee: United States Gypsum Co
•
Filing: 1966-05-13
•
Granted: 1969-11-04
•
Expires: 1986-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jerome N Hurd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:27
CPC Classifications
B; B25; B25C; B25C5/00; B25C5/16; B25C5/1693; B25C5/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US815197A
Cited
US913958A
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US1291071A
Cited
US2156165A
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US2637030A
Cited
US3122749A
Cited
US3310215A
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US3319864A
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US3283986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |