Patent US3266920A successfully refreshed from Google Patents.
US3266920A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak-indicating paints for liquid propellants
Assignee: Individual
•
Filing: 1962-12-27
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Granted: 1966-08-16
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Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 James R Griffith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:26
CPC Classifications
C; C09; C09D; C09D5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A LEAK-INDICATING PAINT FOR LIQUID PROPELLANTS OF A BASE TYPE FUEL AND AN OXIDIZER COMPRISING: A PAINT VEHICLE AND DISPERSED SOLIDS, SAID SOLIDS INCLUDING THEREIN PHENOLPHTHALEIN AND A COLORING AGENT WHICH IS READIALY BLEACHABLE IN THE PRESENCE OF SAID OXIDIZER.
Claim 2
Dependent Claim
40 words
A LEAK-INDICATING PAINT FOR LIQUID PROPELLANTS OF A BASE TYPE FUEL AND AN OXIDIZER COMPRISING: A PAINT VEHICLE AND DISPERSED SOLIDS, SAID SOLIDS INCLUDING THEREIN PHENOLPHTHALEIN AND A COLORING AGENT WHICH IS READIALY BLEACHABLE IN THE PRESENCE OF SAID OXIDIZER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |