Patent US2964918A successfully refreshed from Google Patents.
US2964918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for dispensing gas material
Assignee: Union Carbide Corp
•
Filing: 1957-03-11
•
Granted: 1960-12-20
•
Expires: 1977-03-11
Abstract
No abstract record available.
Inventors
- 👤 Odd A Hansen
- 👤 Haumann Wilfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:04
CPC Classifications
F; F17; F17C; F17C5/00; F17C5/02; F17C9/00; F17C9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2183639A
Cited
US1753785A
Cited
US2037673A
Cited
US2580710A
Cited
US2487863A
Cited
US2544734A
Cited
US2813401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |