US2587744A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of ether
Assignee: Mallinckrodt Chemical Works
•
Filing: 1949-02-12
•
Granted: 1952-03-04
•
Expires: 1969-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward Mallinckrodt
- 👤 Archie E Ruehle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:40
CPC Classifications
B; B65; B65D; B65D25/00; B65D25/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A CONTAINER FOR ETHER COMPRISING A CONTAINER MEMBER AND A COATING ON THE INTERIOR OF SAID CONTAINER MEMBER, SAID COATING COMPRISING CUPRIC OXIDE AND A TIN OXIDE.
Claim 2
Dependent Claim
27 words
A CONTAINER FOR ETHER COMPRISING A CONTAINER MEMBER AND A COATING ON THE INTERIOR OF SAID CONTAINER MEMBER, SAID COATING COMPRISING CUPRIC OXIDE AND A TIN OXIDE.
References Cited (Backward Citations)
US1632309A
Cited
US2135886A
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US2105906A
Cited
US2272609A
Cited
US2245561A
Cited
US2316804A
Cited
US2237259A
Cited
US2315475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-04 | 1955-09-03 | 1956-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-04 | 1959-09-03 | 1960-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-04 | 1963-09-03 | 1964-03-04 | $7700.00 | Window Closed / Lapsed |