US3227591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film techniques
Assignee: GTE Sylvania Inc
•
Filing: 1963-04-26
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Granted: 1966-01-04
•
Expires: 1983-04-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Lambert
- 👤 William R Mckeirnan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:15
CPC Classifications
C; C03; C03C; C03C27/00; C03C27/06; C03C27/10; C03C29/00; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B35/63448; C04B35/63468; C04B35/636; C04B35/6365; C04B37/00; C04B37/003; C04B37/006; C04B37/02; C04B37/023; C04B37/026; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6562; C04B2235/658; C04B2235/6582; C04B2237/00; C04B2237/02; C04B2237/04; C04B2237/08; C04B2237/09; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/125; C04B2237/126; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/407; C04B2237/50; C04B2237/55; C04B2237/70; C04B2237/708; C04B2237/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |