US2840964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evacuating and sealing apparatus
Assignee: Individual
•
Filing: 1954-05-14
•
Granted: 1958-07-01
•
Expires: 1974-05-14
Abstract
No abstract record available.
Inventors
- 👤 Albert C Kissling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732988A
Cited
US2733564A
Cited
US1482467A
Cited
US2145941A
Cited
US2634562A
Cited
US2608333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |