Patent US3507680A successfully refreshed from Google Patents.
US3507680A
Expired / Lapsed
US
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Glass substrate coated with modified or non-modified organopolysiloxane
Assignee: OI Glass Inc
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Filing: 1966-09-09
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Granted: 1970-04-21
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Expires: 1986-09-09
Abstract
No abstract record available.
Inventors
- 👤 Robert Henry Kiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:43
CPC Classifications
C; C08; C08L; C08L83/00; C08L83/04; C03; C03C; C03C17/00; C03C17/28; C03C17/30; C03C17/32; C03C17/34; C03C17/3405; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/18; C08G77/20; C08G77/70; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24926; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31551; Y10T428/31609; Y10T428/31612; Y10T428/31645
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) | 1973-04-20 | 1973-10-20 | 1974-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-20 | 1977-10-20 | 1978-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-20 | 1981-10-20 | 1982-04-21 | $7700.00 | Window Closed / Lapsed |