US2528692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispensing container for acetylene
Assignee: National Cylinder Gas Co
•
Filing: 1945-03-22
•
Granted: 1950-11-07
•
Expires: 1965-03-22
Abstract
No abstract record available.
Inventors
- 👤 Martin H Heeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:57
CPC Classifications
C; C10; C10L; C10L3/00; C10L3/02; C10L3/04; C10H; C10H21/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE300347C
Cited
FR753862A
Cited
US2174976A
Cited
GB189629750A
Cited
US928867A
Cited
US996969A
Cited
US1332525A
Cited
US1591397A
Cited
US1863501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |