Patent US3119749A successfully refreshed from Google Patents.
Patent US3096229A successfully refreshed from Google Patents.
US3096229A
Expired / Lapsed
US
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Carbon impregnated paper and method of making same
Assignee: Riegel Paper Corp
•
Filing: 1959-10-29
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Granted: 1963-07-02
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Expires: 1979-10-29
Abstract
No abstract record available.
Inventors
- 👤 Robert M Whitman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:12
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/775
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1844434A
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US1918095A
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US2030483A
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US1964312A
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US2378113A
Cited
US2328198A
Cited
US2554017A
Cited
US2795545A
Cited
US2772604A
Cited
US2931752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-01 | 1966-12-31 | 1967-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-01 | 1970-12-31 | 1971-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-01 | 1974-12-31 | 1975-07-02 | $7700.00 | Window Closed / Lapsed |