US2778283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of coated asbestos-cement products
Assignee: Individual
•
Filing: 1953-05-28
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Granted: 1957-01-22
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Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 Phillip S Bettoli
- 👤 George L Brown
- 👤 Clarence R Eckert
- 👤 Benjamin B Kine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:02
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/48; C04B41/483; C04B41/60; C04B41/61; C04B41/62; C04B41/63
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
77 words
AS AN ARTICLE OF MANUFACTURE, A FORMED PRODUCT COMPRISING AN ASBESTOS-CEMENT COMPOSITION HAVING ITS SURFACE COATED WITH A WATER-INSOLUBLE COPOLYMER CONTAINING, IN THE POLYMER MOLECULE, A LOWER ALKYL ESTER OF AN ACID SELECTED FROM THE GROUP CONSISTING OF ACRYLIC, METHACRYLIC, AND ITACONIC ACIDS, AND 0.25 TO 6 MOLAR PERCENT OF CARBOXYL-CONTAINING MONOMERIC UNITS DERIVED FROM AT LEAST ONE MEMBERS OF THE CLASS CONSISTING OF ARCYLIC, METHACRYLIC, AND ITACONIC ACIDS, SAID COPOLYMER BEING CROSSLINKED BY A POLYVALENT METAL.
References Cited (Backward Citations)
US1967062A
Cited
US2315675A
Cited
US2422345A
Cited
US2343090A
Cited
US2343095A
Cited
GB580250A
Cited
US2563289A
Cited
DE828007C
Cited
US2604668A
Cited
US2646410A
Cited
US2617746A
Cited
US2642416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |