US2587034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sealing apparatus
Assignee: FRAN STEF Corp A CORP OF NY
•
Filing: 1949-12-31
•
Granted: 1952-02-26
•
Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Frank G Dobbs
- 👤 Stephan H Dobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:30
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/83; B29C66/832; B29C66/8322; B29C66/818; Y; Y10; Y10S; Y10S412/00; Y10S412/902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |