Patent US3785978A successfully refreshed from Google Patents.
US3785978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agent for preventing seizing-up in zip-fasteners
Assignee: Individual
•
Filing: 1971-05-10
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Granted: 1974-01-15
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Expires: 1991-05-10
Abstract
Abstract AN AGENT FOR PREVENTING SEIZING-UP IN PLASTIC ZIP-FASTENERS COMPRISING A HOMOGENIZED MIXTURE OF A CHLORINATED HYDROCARBON AND A DRY-IMPREGNATING AGENT.
Inventors
- 👤 H Uhlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:33
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |