Patent US2405235A successfully refreshed from Google Patents.
US2405235A
Expired / Lapsed
US
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Underlay for floor coverings
Assignee: TEKWOOD Inc
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Filing: 1942-12-05
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Granted: 1946-08-06
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Expires: 1962-12-05
Abstract
No abstract record available.
Inventors
- 👤 Boardman M Randall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:49
CPC Classifications
E; E04; E04F; E04F15/00; E04F15/18; B; B27; B27D; B27D1/00; B27D1/04; B27D1/06; E04F15/182; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24058; Y10T428/24066; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31823; Y10T428/31942; Y10T428/31949; Y10T428/31957; Y10T428/31964; Y10T442/00; Y10T442/50; Y10T442/59
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) | 1949-08-05 | 1950-02-04 | 1950-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-08-05 | 1954-02-04 | 1954-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-08-05 | 1958-02-04 | 1958-08-06 | $7700.00 | Window Closed / Lapsed |