US2599649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetylene solution
Assignee: Individual
•
Filing: 1951-08-09
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Granted: 1952-06-10
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 Lorenz Lothar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:07
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/02; C10L3/04; C07; C07C; C07C7/00; C07C7/11
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
32 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF A SOLUTION OF ACETYLENE IN A N-ALKYL PYRROLIDONE THE ALKYL RADICAL OF WHICH IS A SATURATED HYDROCARBON RADICAL NOT CONTAINING MORE THAN 3 CARBON ATOMS.
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) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |