Patent US2363289A successfully refreshed from Google Patents.
US2363289A
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Method of moistureproofing cellulosic sheets
Assignee: Individual
•
Filing: 1940-06-21
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Granted: 1944-11-21
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Expires: 1960-06-21
Abstract
No abstract record available.
Inventors
- 👤 Bergstein Frank David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:13
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18; C; C09; C09D; C09D191/00; C09D191/06; C09D191/08; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2822; Y10T428/2826; Y10T428/31504; Y10T428/31801; Y10T428/31804; Y10T428/31826; Y10T428/31841; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31895; Y10T428/31899
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) | 1947-11-21 | 1948-05-22 | 1948-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-21 | 1952-05-22 | 1952-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-21 | 1956-05-22 | 1956-11-21 | $7700.00 | Window Closed / Lapsed |