US1629185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonslip floor construction
Assignee: Unifrax I LLC
•
Filing: 1922-01-25
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Granted: 1927-05-17
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Expires: 1942-01-25
Abstract
No abstract record available.
Inventors
- 👤 Frank J Tone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:14
CPC Classifications
E; E04; E04F; E04F11/00; E04F11/02; E04F11/104; E04F11/16; E04F15/00; E04F15/02; E04F15/08
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) | 1930-05-16 | 1930-11-15 | 1931-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-05-16 | 1934-11-15 | 1935-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-05-16 | 1938-11-15 | 1939-05-17 | $7700.00 | Window Closed / Lapsed |