Patent US3005448A successfully refreshed from Google Patents.
Patent US1388685A successfully refreshed from Google Patents.
US1388685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for producing felt paper or felt
Assignee: Bird Inc
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Filing: 1918-09-03
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Granted: 1921-08-23
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Expires: 1938-09-03
Abstract
No abstract record available.
Inventors
- 👤 George R Wyman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:02
CPC Classifications
D; D21; D21G; D21G9/00
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) | 1924-08-22 | 1925-02-21 | 1925-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-22 | 1929-02-21 | 1929-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-22 | 1933-02-21 | 1933-08-23 | $7700.00 | Window Closed / Lapsed |