US3404104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin foam
Assignee: Phillips Petroleum Co
•
Filing: 1964-12-21
•
Granted: 1968-10-01
•
Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 George R Hill
- 👤 Donald G Needham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:04
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0095; C08J9/0014; C08J9/0023; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K5/00; C08K5/04; C08K5/09; C08K5/10; C08K5/12; C08L; C08L23/00; C08L23/02; C08L91/00; C08J2323/00; C08J2323/02; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S264/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2819231A
Cited
US2945827A
Cited
US2945828A
Cited
US2960482A
Cited
US3017371A
Cited
US3098832A
Cited
GB903564A
Cited
US3118161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |