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Patent US3372044A successfully refreshed from Google Patents.
US3372044A
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Method and composition for forming paper having opaque cellular structure
Assignee: Kimberly Clark Corp
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Filing: 1964-06-30
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Granted: 1968-03-05
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Expires: 1984-06-30
Abstract
No abstract record available.
Inventors
- 👤 Robert E Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:43
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/66; D21H19/70; D21H19/36; D21H19/44; D21H19/50; D21H19/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1871842A
Cited
US2101574A
Cited
US3108009A
Cited
US3242028A
Cited
US3166466A
Cited
US3157533A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |