US3217071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming hollow plastic articles
Assignee: OI Glass Inc
•
Filing: 1961-12-13
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Granted: 1965-11-09
•
Expires: 1981-12-13
Abstract
No abstract record available.
Inventors
- 👤 Charles E Plymale
- 👤 Anthony J Scalora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:38
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF FORMING HOLLOW PLASTIC ARTICLES COMPRISING THE STEPS OF SUPPLYING TUBING OF THERMOPLASTIC MATERIAL, SAID TUBING HAVING AN OPEN END AND BEGIN HEATED TO A CONDITION OF PLASTICTY TO PERMIT EXPANSION, POSITIONING THE OPEN HALVES OF A PARTIBLE BLOW MOLD AROUND SAID TUBING, SAID BLOW MOLD HAVING TUBE SEALING AND SEVERING MEANS ATTACHED THERETO, INSERTING A BLOWPIPE INTO THE LOWER OPEN END OF SAID TUBING, SEALING AND SEVERING SAID TUBING BEYOND THE END OF THE BLOWPIPE BY PARTIALLY CLOSING SAID MOLD HAVLED, SUPPORTING THE SEALED AND SEVERED LENGTH OF TUBING BY MEANS OF SAID BLOWPIPE, FULLY CLOSING SAID MOLD HALVES AROUND SAID TUBING WITHOUT PINCHING THE SEALED END THEREOF, AND EXPANDING SAID TUBING IN SAID MOLD BY INTRODUCING FLUID UNDER PRESSURE THROUGH SAID BLOWPIPE.
Claim 2
Independent Claim
126 words
THE METHOD OF FORMING HOLLOW PLASTIC ARTICLES COMPRISING THE STEPS OF SUPPLYING TUBING OF THERMOPLASTIC MATERIAL, SAID TUBING HAVING AN OPEN END AND BEGIN HEATED TO A CONDITION OF PLASTICTY TO PERMIT EXPANSION, POSITIONING THE OPEN HALVES OF A PARTIBLE BLOW MOLD AROUND SAID TUBING, SAID BLOW MOLD HAVING TUBE SEALING AND SEVERING MEANS ATTACHED THERETO, INSERTING A BLOWPIPE INTO THE LOWER OPEN END OF SAID TUBING, SEALING AND SEVERING SAID TUBING BEYOND THE END OF THE BLOWPIPE BY PARTIALLY CLOSING SAID MOLD HAVLED, SUPPORTING THE SEALED AND SEVERED LENGTH OF TUBING BY MEANS OF SAID BLOWPIPE, FULLY CLOSING SAID MOLD HALVES AROUND SAID TUBING WITHOUT PINCHING THE SEALED END THEREOF, AND EXPANDING SAID TUBING IN SAID MOLD BY INTRODUCING FLUID UNDER PRESSURE THROUGH SAID BLOWPIPE.
References Cited (Backward Citations)
US2810934A
Cited
US2819490A
Cited
US2787023A
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US3011216A
Cited
US3008191A
Cited
US2935764A
Cited
US3001239A
Cited
US3017314A
Cited
US3028294A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |