Patent US2066639A successfully refreshed from Google Patents.
US2066639A
Expired / Lapsed
US
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Noncurl corner construction for floor coverings and method of producing same
Assignee: Individual
•
Filing: 1936-01-22
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Granted: 1937-01-05
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Expires: 1956-01-22
Abstract
No abstract record available.
Inventors
- 👤 Charles H Masland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:21
CPC Classifications
A; A47; A47G; A47G27/00; A47G27/04; A47G27/0406; A47G27/0431; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/24; Y10T428/24777; Y10T428/24793
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) | 1940-01-05 | 1940-07-06 | 1941-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-01-05 | 1944-07-06 | 1945-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-01-05 | 1948-07-06 | 1949-01-05 | $7700.00 | Window Closed / Lapsed |