US2497330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making cemented pile fabric
Assignee: C H Masland & Sons Inc
•
Filing: 1946-08-20
•
Granted: 1950-02-14
•
Expires: 1966-08-20
Abstract
No abstract record available.
Inventors
- 👤 Paul S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:32
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; B; B05; B05C; B05C19/00; B05C19/001
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1671688A
Cited
US2084065A
Cited
US2110175A
Cited
US2213502A
Cited
US2302722A
Cited
US2313100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |