US2556071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waterproof membrane for floor coverings
Assignee: Individual
•
Filing: 1946-07-11
•
Granted: 1951-06-05
•
Expires: 1966-07-11
Abstract
No abstract record available.
Inventors
- 👤 Clyde T Denton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:19
CPC Classifications
D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0089; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T428/24322; Y10T428/24331; Y10T428/24479; Y10T428/24612; Y10T428/28; Y10T428/2813
Claims Analysis
Total Claims: 0
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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) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |