Patent US3440189A successfully refreshed from Google Patents.
US3440189A
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Particle board
Assignee: PPG Architectural Coatings Canada Inc
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Filing: 1966-11-21
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Granted: 1969-04-22
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Expires: 1986-11-21
Abstract
No abstract record available.
Inventors
- 👤 John Arthur Sharp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:01
CPC Classifications
C; C09; C09J; C09J175/00; C09J175/04; B; B27; B27N; B27N3/00; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/64; C08G18/6492; C08L; C08L75/00; C08L75/04; C08L97/00; C08L97/02; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/253; Y10T428/26; Y10T428/268; Y10T428/29; Y10T428/2982
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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |