US3540084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide-fastener assembly for bed linen and the like
Assignee: Opti Holding AG
•
Filing: 1968-01-22
•
Granted: 1970-11-17
•
Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Alfons Frohlich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:11
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2521; Y10T24/253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1622250A
Cited
US2201772A
Cited
GB603599A
Cited
US2470251A
Cited
US2718047A
Cited
US2903775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |