US3544489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-pigmented,opaque,microporous film and process and composition for preparing same
Assignee: PPG Industries Inc
•
Filing: 1966-06-14
•
Granted: 1970-12-01
•
Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Rostyslaw Dowbenko
- 👤 Bruce N Mcbane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:00
CPC Classifications
C; C09; C09D; C09D157/00; C08; C08J; C08J9/00; C08J9/26; C09D133/00; C09D133/04; C09D133/06; C09D167/00; C08L; C08L2205/00; C08L2205/14; C08L2205/18; C08L61/00; C08L61/20; C08L67/00; C08L67/02; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249978
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2353877A
Cited
US2681897A
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US2700694A
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US2794010A
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US3020597A
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US2853459A
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US3037963B1
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US3183282A
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US3082184A
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US3062760A
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US3108089A
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US3271479A
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US3230275A
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US3310505A
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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) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |