US2581295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trowelable bituminous flooring composition and methods of making same
Assignee: Durastic Ltd
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Filing: 1949-02-03
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Granted: 1952-01-01
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Expires: 1969-02-03
Abstract
No abstract record available.
Inventors
- 👤 Cyril A Redfarn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:23
CPC Classifications
C; C04; C04B; C04B24/00; C04B24/24; C04B24/36; C04B28/00; C04B28/14; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/60; Y; Y10; Y10S; Y10S260/00; Y10S260/47
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A TROWELABLE BITUMINOUS FLOORING COMPOSITION COMPRISING BETWEEN EIGHTY AND FIFTY-SEVEN PARTS BY WEIGHT OF ALUMINOUS CEMENT BETWEEN FIVE AND ONE HALF AND TWENTY-EIGHT AND ONE HALF PARTS BY WEIGHT OF PLASTER OF PARIS BETWEEN TWO AND TEN PARTS BY WEIGHT OF ASBESTOS FLOATS BETWEEN TWENTY AND ONE HUNDRED AND TWENTY PARTS BY WEIGHT OF SAND BETWEEN NINETEEN AND THIRTY-TWO PARTS BY WEIGHT OF POLYVINYL ACETATE BETWEEN TWENTY AND THIRTY-FIVE PARTS BY WEIGHT OF ASPHALTIC BITUMEN AND BETWEEN EIGHTY-ONE AND ONE HUNDRED AND THREE PARTS BY WEIGHT OF WATER.
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) | 1954-12-31 | 1955-07-02 | 1956-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-31 | 1959-07-02 | 1960-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-31 | 1963-07-02 | 1964-01-01 | $7700.00 | Window Closed / Lapsed |