US3663678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of using shrinkable plastics
Assignee: Sinclair and Rush Inc
•
Filing: 1969-09-08
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Granted: 1972-05-16
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Expires: 1989-09-08
Abstract
Abstract A SHRINKABLE SYNTHETIC POLYMER PART PRODUCED BY SWELLING THE PART IN SOLVENT WITH SUBSEQUENT "FREEZING" OF THE PART IN THE ENLARGED STATE. THE EXPANDED PART CAN BE APPLIED OVER THE PART TO BE COVERED AND SHRUNK BY APPLICATION OF HEAT OR SOLVENT. THE PART PERFREABLY IS OF POLYVINYL CHLORIDE.
Inventors
- 👤 Joseph T Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:02
CPC Classifications
B; B29; B29C; B29C61/00; B29C61/06; B29K; B29K2027/00; B29K2027/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |