Patent US2069648A successfully refreshed from Google Patents.
US2069648A
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Paper and method of making
Assignee: KALAMAZOO PAPER CO
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Filing: 1936-02-10
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Granted: 1937-02-02
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Expires: 1956-02-10
Abstract
No abstract record available.
Inventors
- 👤 Peter F Denner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:31
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/80; D21H19/84; D21H19/82; D21H19/822; D21H19/02; D21H19/06; D21H19/10; D21H19/14; D21H19/34; D21H19/36; D21H19/38; D21H19/40; D21H19/44; D21H19/50; D21H25/00; D21H25/08; D21H25/12; D21H25/14; Y; Y10; Y10S; Y10S160/00; Y10S160/07
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) | 1940-02-02 | 1940-08-03 | 1941-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-02 | 1944-08-03 | 1945-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-02 | 1948-08-03 | 1949-02-02 | $7700.00 | Window Closed / Lapsed |