Patent US3378893A successfully refreshed from Google Patents.
US3378893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Discoid snap fastener
Assignee: Individual
•
Filing: 1964-10-15
•
Granted: 1968-04-23
•
Expires: 1984-10-15
Abstract
No abstract record available.
Inventors
- 👤 Labek Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:37
CPC Classifications
A; A44; A44B; A44B17/00; A44B17/0029; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10T; Y10T24/00; Y10T24/32; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45775
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A FASTENER FOR CONNECTING PLASTIC FOIL COMPRISING TWO DISCOID PARTS FOR ATTACHMENT TO A SURFACE OF SAID PLASTIC FOIL, SECUREMENT MEANS ON A SURFACE OF AT LEAST ONE OF SAID DISCOID PARTS IN THE FORM OF A CONCENTRIC RIB EXTENDING INTO GRIPPING ENGAGEMENT WITH THE OTHER PART
Claim 2
Dependent Claim
47 words
A FASTENER FOR CONNECTING PLASTIC FOIL COMPRISING TWO DISCOID PARTS FOR ATTACHMENT TO A SURFACE OF SAID PLASTIC FOIL, SECUREMENT MEANS ON A SURFACE OF AT LEAST ONE OF SAID DISCOID PARTS IN THE FORM OF A CONCENTRIC RIB EXTENDING INTO GRIPPING ENGAGEMENT WITH THE OTHER PART
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-23 | 1971-10-23 | 1972-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-23 | 1975-10-23 | 1976-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-23 | 1979-10-23 | 1980-04-23 | $7700.00 | Window Closed / Lapsed |