US3519211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disintegration process for fibrous sheet material
Assignee: Procter and Gamble Co
•
Filing: 1967-05-26
•
Granted: 1970-07-07
•
Expires: 1987-05-26
Abstract
No abstract record available.
Inventors
- 👤 Richard M Sakulich
- 👤 Mario S Marsan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:59
CPC Classifications
D; D21; D21B; D21B1/00; D21B1/04; D21B1/06; D21B1/066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1624435A
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US2414361A
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US2511464A
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US2830772A
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US3186277A
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US3186651A
Cited
US3244049A
Cited
US3353754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |