US3432232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Illumination system
Assignee: Xerox Corp
•
Filing: 1965-10-21
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Granted: 1969-03-11
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Expires: 1985-10-21
Abstract
No abstract record available.
Inventors
- 👤 Edgar M Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:02
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/75; C07D233/00; C07D233/54; C07D233/66; C07D233/84; C07D233/90; C07D317/00; C07D317/08; C07D317/10; C07D317/14; C07D317/28; G; G03; G03B; G03B27/00; G03B27/32; G03B27/52; G03B27/54; G03B27/542; G03G; G03G15/00; G03G15/04; G03G15/04036
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) | 1972-03-10 | 1972-09-09 | 1973-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-10 | 1976-09-09 | 1977-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-10 | 1980-09-09 | 1981-03-11 | $7700.00 | Window Closed / Lapsed |