Patent US2884166A successfully refreshed from Google Patents.
Patent US3515554A successfully refreshed from Google Patents.
US3515554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diazo type paper and new high speed diazo reproduction process
Assignee: US Philips Corp
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Filing: 1966-07-25
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Granted: 1970-06-02
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Jean J A Robillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:00
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/52; G03C1/61; G03C1/695
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2027229A
Cited
US2245628A
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FR854354A
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DE906406C
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US2659672A
Cited
US3046124A
Cited
US3046113A
Cited
US3062650A
Cited
US3365293A
Cited
US3288609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |