US3422503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Covered watertight slide fastener
Assignee: Individual
•
Filing: 1966-11-14
•
Granted: 1969-01-21
•
Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Hans Porepp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:57
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/40; A44B19/406; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE1078511B
Cited
US3054158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |