Patent US3450563A successfully refreshed from Google Patents.
US3450563A
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Assignee: PPG Industries Inc
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Filing: 1965-08-19
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Granted: 1969-06-17
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Expires: 1985-08-19
Abstract
No abstract record available.
Inventors
- 👤 Robert C Krueger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:37
CPC Classifications
C; C09; C09D; C09D157/00; C09D157/06; C09D157/12; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1802; C08F8/00; C08F8/28; C09D157/04; C08F2800/00; C08F2800/20; C08F2810/00; C08F2810/50; C08L; C08L2205/00; C08L2205/14; C08L2205/18; C08L23/00; C08L23/02; C08L23/10; C08L23/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24438; Y10T428/25; Y10T428/254; Y10T428/31504; Y10T428/31855
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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |