Patent US2579088A successfully refreshed from Google Patents.
US2579088A
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Heat sealing tool
Assignee: Shellmar Products Corp
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Filing: 1949-10-25
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Granted: 1951-12-18
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Expires: 1969-10-25
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Piazze
- 👤 Bert W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:12
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C65/00; B29C65/02; B29C65/14; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/43121; B29C66/82; B29C66/822; B29C66/8221; B29C66/8227; B29C66/83; B29C66/832; B29C66/8324; B29C66/83241; B29C66/84; B29C66/861; B29C66/8614; B65; B65B; B65B51/00; B65B51/10; B65B51/14; B65B51/148; B29C66/70; B29C66/71; B29C66/81411; B29C66/81421; B29C66/81422; Y; Y10; Y10T; Y10T156/00; Y10T156/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191408814A
Cited
US1882925A
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US2189431A
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US2263152A
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US2443749A
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US2441817A
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US2477467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |