Patent US3334085A successfully refreshed from Google Patents.
US3334085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Naphthol disazo dyestuffs containing phenylthiosulfate groups
Assignee: Lockheed Martin Corp
•
Filing: 1964-09-02
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Granted: 1967-08-01
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Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 Gordon A Geselbracht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:45
CPC Classifications
C; C09; C09B; C09B33/00; C09B33/02; C09B33/08; C09B33/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A DISAZO DYSESTUFF OF THE FORMULA
Claim 2
Dependent Claim
6 words
A DISAZO DYSESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2200445A
Cited
US2160448A
Cited
US2220396A
Cited
US2756223A
Cited
US2806760A
Cited
US2804454A
Cited
US2931693A
Cited
US3128267A
Cited
US3088790A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |