US3269877A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphate coating composition
Assignee: Detrex Corp
•
Filing: 1964-04-03
•
Granted: 1966-08-30
•
Expires: 1984-04-03
Abstract
No abstract record available.
Inventors
- 👤 Schlossberg Louis
- 👤 Paul J Carrier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 00:42
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/12; C23C22/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2121574A
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US2296844A
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US2346302A
Cited
US2540314A
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US2487137A
Cited
GB731882A
Cited
GB757050A
Cited
US3240633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |