US3200028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hand tool for sealing thermoplastic surfaced members
Assignee: Dow Chemical Co
•
Filing: 1961-10-06
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Granted: 1965-08-10
•
Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Douglas S Chisholm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:38
CPC Classifications
B; B65; B65B; B65B13/00; B65B13/18; B65B13/24; B65B13/32; B65B13/327; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/82; B29C66/822; B29C66/8221; B29C66/8227; B29C66/83; B29C66/832; B29C66/8324; B29C66/83241; B29C66/84; B29C66/861; B29C66/8614; B29C66/90; B29C66/96; B29C66/967; B29C66/9672; B29C66/828; B29C66/8286; Y; Y10; Y10T; Y10T156/00; Y10T156/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A HEAT SEALING TOOL COMPRISING A PAIR OF GENERALLY OPPOSED HANDLES ADAPTED TO BE CLASPED IN ONE HAND, SAID HANDLES IN OPERATIVE ENGAGEMENT WITH A PAIR OF JAWS, SAID JAWS ADAPTED TO CLAMP BETWEEN THEM AT LEAST TWO LAYERS OF THERMOPLASTIC FACED MATERIAL, A GENERALLY FLAT HEATING MEMBER RETRACTIVELY DISPOSED BETWEEN SAID JAWS, AND IN COOPERATIVE COMBINATION WITH A HEAT SOURCE AND HEATING
Claim 2
Dependent Claim
63 words
A HEAT SEALING TOOL COMPRISING A PAIR OF GENERALLY OPPOSED HANDLES ADAPTED TO BE CLASPED IN ONE HAND, SAID HANDLES IN OPERATIVE ENGAGEMENT WITH A PAIR OF JAWS, SAID JAWS ADAPTED TO CLAMP BETWEEN THEM AT LEAST TWO LAYERS OF THERMOPLASTIC FACED MATERIAL, A GENERALLY FLAT HEATING MEMBER RETRACTIVELY DISPOSED BETWEEN SAID JAWS, AND IN COOPERATIVE COMBINATION WITH A HEAT SOURCE AND HEATING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |