Patent US4658098A successfully refreshed from Google Patents.
Patent US1857100A successfully refreshed from Google Patents.
US1857100A
Expired / Lapsed
US
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Absorbent paper
Assignee: Celastic Corp
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Filing: 1931-08-25
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Granted: 1932-05-03
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Expires: 1951-08-25
Abstract
No abstract record available.
Inventors
- 👤 Frank H Mccormick
- 👤 George L Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:11
CPC Classifications
D; D21; D21H; D21H11/00; D21H11/16; D21H11/18; D21C; D21C9/00; D21C9/001; D21C9/002
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) | 1935-05-03 | 1935-11-02 | 1936-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-03 | 1939-11-02 | 1940-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-03 | 1943-11-02 | 1944-05-03 | $7700.00 | Window Closed / Lapsed |