Patent US3138100A successfully refreshed from Google Patents.
US3138100A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Articles protected against environmental effects
Assignee: Pennwalt Corp
•
Filing: 1960-05-20
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Granted: 1964-06-23
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Expires: 1980-05-20
Abstract
No abstract record available.
Inventors
- 👤 Norman D Peschko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:58
CPC Classifications
F; F42; F42C; F42C15/00; F42C15/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
AN ARTICLE PROTECTED AGAINST THE EFFECTS OF ITS ENVIRONMENT COMPRISING A SEALED CONTAINER, THE ARTICLE TO BE PROTECTED AND A SOLID HIGHLY FLUORINATED CYCLOHEXANE IN CONTACT WITH SAID ARTICLE TO PREVENT PHYSICAL AND CHEMICAL CHANGE OF SAID ARTICLE.
Claim 2
Dependent Claim
38 words
AN ARTICLE PROTECTED AGAINST THE EFFECTS OF ITS ENVIRONMENT COMPRISING A SEALED CONTAINER, THE ARTICLE TO BE PROTECTED AND A SOLID HIGHLY FLUORINATED CYCLOHEXANE IN CONTACT WITH SAID ARTICLE TO PREVENT PHYSICAL AND CHEMICAL CHANGE OF SAID ARTICLE.
References Cited (Backward Citations)
US1471628A
Cited
US1983322A
Cited
US2404441A
Cited
US2465009A
Cited
US2805507A
Cited
US2850978A
Cited
US2914424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |