Patent US893402A successfully refreshed from Google Patents.
Patent US2875673A successfully refreshed from Google Patents.
US2875673A
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Apparatus for heat sealing a ply of a bag tube
Assignee: Arkell and Smiths
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Filing: 1956-04-17
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Granted: 1959-03-03
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Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 Paul C Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:16
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/49; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/41; B29C66/43; B29C66/432; B29C66/4322; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72327; B29C66/72328; B29C66/7234; B29C66/72343; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/824; B29C66/8242; B29C66/83; B29C66/836; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91421; B29C66/9161; B29C66/91651; B29C66/919; B29C66/71; B29C66/84; B29C66/851; B29C66/8511; B29C66/92; B29C66/924; B29C66/9261; B29K; B29K2711/00; B29K2711/12; B29K2711/126; B29L; B29L2009/00; B29L2009/001; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/644
Claims Analysis
Total Claims: 0
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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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |