US3413481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spectral emission coding
Assignee: Wyeth Holdings LLC
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Filing: 1966-02-09
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Granted: 1968-11-26
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Expires: 1986-02-09
Abstract
No abstract record available.
Inventors
- 👤 Berry John William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:18
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/22; G; G01; G01N; G01N23/00; G01N23/22; G06; G06K; G06K7/00; G06K7/10; G06K7/12
Claims Analysis
Total Claims: 0
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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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |