US3280240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binding methods and apparatus
Assignee: Spiral Binding Co Inc
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Filing: 1963-02-11
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Granted: 1966-10-18
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Peter J Bardy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; B42B5/103
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
106 words
APPARATUS FOR FORMING A BLANK OF THERMOPLASTIC MATERIAL INTO A SHAPED ARTICLE COMPRISING, IN COMBINATION, A FORMING STATION, A HEATING STATION SPACED FROM SAID FORMING STATION AND INCLUDING HEATING MEANS FOR RAISING THE TEMPERATURE OF THE THERMOPLASTIC MATERIAL SO AS TO SOFTEN THE BLANK, A THIN FLEXIBLE SHEET OF METALLIC SHIM STOCK DISPOSED ADJACENT SAID HEATING MEANS FOR PROVIDING FACE-TOFACE SUPPORT FOR A BLANK AND FOR MAINTAINING THE BLANK IN HEAT TRANSMISSIVE RELATION WITH SAID HEATING MEANS, AND MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID FLEXIBLE SHEET AND SAID FORMING STATION FOR AFFIRMATIVELY FEEDING SAID SHEET AND THE SOFTENED BLANK CARRIED THEREON INTO SAID FORMING STATION.
Claim 2
Dependent Claim
106 words
APPARATUS FOR FORMING A BLANK OF THERMOPLASTIC MATERIAL INTO A SHAPED ARTICLE COMPRISING, IN COMBINATION, A FORMING STATION, A HEATING STATION SPACED FROM SAID FORMING STATION AND INCLUDING HEATING MEANS FOR RAISING THE TEMPERATURE OF THE THERMOPLASTIC MATERIAL SO AS TO SOFTEN THE BLANK, A THIN FLEXIBLE SHEET OF METALLIC SHIM STOCK DISPOSED ADJACENT SAID HEATING MEANS FOR PROVIDING FACE-TOFACE SUPPORT FOR A BLANK AND FOR MAINTAINING THE BLANK IN HEAT TRANSMISSIVE RELATION WITH SAID HEATING MEANS, AND MEANS FOR EFFECTING RELATIVE MOVEMENT BETWEEN SAID FLEXIBLE SHEET AND SAID FORMING STATION FOR AFFIRMATIVELY FEEDING SAID SHEET AND THE SOFTENED BLANK CARRIED THEREON INTO SAID FORMING STATION.
Claim 3
Independent Claim
69 words
THE METHOD OF FORMING SHAPED ARTICLES FROM A BLANK OF THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF SUPPORTING SAID BLANK ON A SHEET OF ELXIBLE METALLIC SHIM STOCK, APPLYING HEAT TO SAID BLANK SO AS TO SOFTEN THE THERMOPLASTIC MATERIAL, DRIVING SAID SHIM STOCK WITH THE SOFTENED BLANK CARRIED THEREON INTO A FORMING DIE, AND COOLING SAID BLANK WHILE SAID SHIM STOCK AND SAID BLANK ARE CONFINED WITHIN SAID DIE.
Claim 4
Independent Claim
69 words
THE METHOD OF FORMING SHAPED ARTICLES FROM A BLANK OF THERMOPLASTIC MATERIAL COMPRISING THE STEPS OF SUPPORTING SAID BLANK ON A SHEET OF ELXIBLE METALLIC SHIM STOCK, APPLYING HEAT TO SAID BLANK SO AS TO SOFTEN THE THERMOPLASTIC MATERIAL, DRIVING SAID SHIM STOCK WITH THE SOFTENED BLANK CARRIED THEREON INTO A FORMING DIE, AND COOLING SAID BLANK WHILE SAID SHIM STOCK AND SAID BLANK ARE CONFINED WITHIN SAID DIE.
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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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |