Patent US2882175A successfully refreshed from Google Patents.
US2882175A
Expired / Lapsed
US
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Pozzolan plasterboard
Assignee: FLORENT H BAILLY
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Filing: 1956-09-10
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Granted: 1959-04-14
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Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 Florent H Bailly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:38
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/14; C04B20/00; C04B20/10; C04B20/1018; C04B20/1022; C04B20/1025; E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
AN IMPROVED LIGHT WEIGHT PLASTER WHICH CONSISTS ESSENTIALLY OF GYPSUM PLASTER, A FILLER, WATER, AND BETWEEN ABOUT 1 AND ABOUT 9 PARTS BY WEIGHT OF CALCINED OILIMPREGNATED DIATOMACEOUS EARTH OT EACH 5 PARTS OF THE GYPSUM PLASTER.
Claim 2
Dependent Claim
37 words
AN IMPROVED LIGHT WEIGHT PLASTER WHICH CONSISTS ESSENTIALLY OF GYPSUM PLASTER, A FILLER, WATER, AND BETWEEN ABOUT 1 AND ABOUT 9 PARTS BY WEIGHT OF CALCINED OILIMPREGNATED DIATOMACEOUS EARTH OT EACH 5 PARTS OF THE GYPSUM PLASTER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |