Patent US1494970A successfully refreshed from Google Patents.
US1494970A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper-reenforcing machine
Assignee: IND FOUNDATION Inc
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Filing: 1920-03-06
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Granted: 1924-05-20
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Expires: 1940-03-06
Abstract
No abstract record available.
Inventors
- 👤 Wandel Kurt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
D; D21; D21F; D21F11/00
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) | 1927-05-20 | 1927-11-19 | 1928-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-05-20 | 1931-11-19 | 1932-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-05-20 | 1935-11-19 | 1936-05-20 | $7700.00 | Window Closed / Lapsed |