US1446475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Edge-forming machine for sheets of hair or fiber
Assignee: HENRY WILHELM Co
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Filing: 1921-12-22
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Granted: 1923-02-27
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Expires: 1941-12-22
Abstract
No abstract record available.
Inventors
- 👤 Maussner Frederick
- 👤 Isaac B Ritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:02
CPC Classifications
D; D04; D04H; D04H18/00; D04H18/02; D04H1/00
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) | 1926-02-26 | 1926-08-28 | 1927-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-02-26 | 1930-08-28 | 1931-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-02-26 | 1934-08-28 | 1935-02-27 | $7700.00 | Window Closed / Lapsed |