US3647613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastics containers for fuel storage
Assignee: FORTH CHEMICALS Ltd
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Filing: 1969-01-30
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Granted: 1972-03-07
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Expires: 1989-01-30
Abstract
Abstract CONTAINERS FOR PETROLEUM HYDROCARBONS MADE FROM HIGH DENSITY POLYETHYLENE HAVING A SURFACE FLUORINATED TO A CONCENTRATION OF 0.01 TO 30 MICROGRAMS OF FLUORINE PER SQUARE CENTIMETRE.
Inventors
- 👤 John Louis Scotland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:01
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/126; C08J2323/00; C08J2323/02; C08J2323/04; Y; Y10; Y10S; Y10S220/00; Y10S220/905; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/3154
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |