US2697982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing plasterboards having printed edge indicia
Assignee: United States Gypsum Co
•
Filing: 1949-03-11
•
Granted: 1954-12-28
•
Expires: 1969-03-11
Abstract
No abstract record available.
Inventors
- 👤 Clarence A Carlson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:36
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; B; B28; B28B; B28B19/00; B28B19/0092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US609007A
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US994590A
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US1744292A
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US1942168A
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US1966191A
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US2021037A
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US2132340A
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US2239860A
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US2321057A
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US2332296A
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US2393514A
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US2435369A
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US2528184A
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |