US3623898A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interior plaster coating composition
Assignee: DURABLE DRI HARD WALL Inc
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Filing: 1969-10-09
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Granted: 1971-11-30
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Expires: 1989-10-09
Abstract
Abstract A DRY PLASTER COMPOSITION FOR USE AS AN INTERIOR SURFACE COATING COMPRISING 33-38 WEIGHT PERCENT GYPSUM, 7.5-10 WEIGHT PERCENT QUICKLIME, 45-55 WEIGHT PERCENT SILICA AND 1.25-2.50 WEIGHT PERCENT WHITE PORTLAND CEMENT.
Inventors
- 👤 Nicholas A Limberis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:37
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/14; C04B28/18; C04B2111/00; C04B2111/00474; C04B2111/00482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |