US2574094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sealing machine of the thermal impulse type
Assignee: Individual
•
Filing: 1949-09-10
•
Granted: 1951-11-06
•
Expires: 1969-09-10
Abstract
No abstract record available.
Inventors
- 👤 Fener Alfred
- 👤 Fener Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/228; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/80; B29C66/81; B29C66/812; B29C66/8122; B29C66/814; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8182; B29C66/81821; B29C66/8187; B29C66/81871; B29C66/90; B29C66/91; B29C66/94
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1026456A
Cited
US1810225A
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US1905364A
Cited
GB423166A
Cited
US2460460A
Cited
US2479375A
Cited
US2441817A
Cited
US2454338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-05 | 1955-05-07 | 1955-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-05 | 1959-05-07 | 1959-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-05 | 1963-05-07 | 1963-11-06 | $7700.00 | Window Closed / Lapsed |