US3532672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous product for paper sizing and a process for producing the same
Assignee: Individual
•
Filing: 1967-01-23
•
Granted: 1970-10-06
•
Expires: 1987-01-23
Abstract
No abstract record available.
Inventors
- 👤 Masaki Takahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:00
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/20; D21H17/33; D21H17/34; D21H17/41; D21H17/42; D21H17/43; C; C08; C08F; C08F10/00; C08F20/00; C08F20/62; C08F22/00; C08F240/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2383399A
Cited
US2842859A
Cited
US3005800A
Cited
US3211683A
Cited
US3161620A
Cited
US3255139A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-10-05 | 1974-04-06 | 1974-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-05 | 1978-04-06 | 1978-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-05 | 1982-04-06 | 1982-10-06 | $7700.00 | Window Closed / Lapsed |