Patent US3381068A successfully refreshed from Google Patents.
US3381068A
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US
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Thermoforming and scoring method and apparatus
Assignee: Mobil Oil AS
•
Filing: 1965-07-01
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Granted: 1968-04-30
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Expires: 1985-07-01
Abstract
No abstract record available.
Inventors
- 👤 Charles H Leiper
- 👤 Morton A Lowenthal
- 👤 Wendell B Shearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:49
CPC Classifications
B; B29; B29C; B29C51/00; B29C51/26; B29C51/30; B29C51/34; Y; Y10; Y10S; Y10S425/00; Y10S425/058
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1744026A
Cited
US2666951A
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US2991500A
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US3004285A
Cited
US3058153A
Cited
CH373171A
Cited
US3234310A
Cited
US3214797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |