US3146283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforating plastic film and the like
Assignee: Individual
•
Filing: 1959-09-04
•
Granted: 1964-08-25
•
Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Valle Bruno Da
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:24
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/24; Y; Y10; Y10T; Y10T83/00; Y10T83/283; Y10T83/293; Y10T83/929; Y10T83/9372; Y10T83/9387; Y10T83/9389
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
THE METHOD OF PERFORATING AND FORMING POLYETHYLENE FILM WHICH COMPRISES ADVANCING THE FILM ALONG A PATH, DEFORMING ONE PORTION OF SAID FILM BY APPLYING HEAT THERETO TO PROVIDE A GROOVE PARALLEL TO SAID PATH, AND PIERCING SAID POLYETHYLENE FILM AT SPACED INTERVALS IN SAID GROOVE.
Claim 2
Independent Claim
45 words
THE METHOD OF PERFORATING AND FORMING POLYETHYLENE FILM WHICH COMPRISES ADVANCING THE FILM ALONG A PATH, DEFORMING ONE PORTION OF SAID FILM BY APPLYING HEAT THERETO TO PROVIDE A GROOVE PARALLEL TO SAID PATH, AND PIERCING SAID POLYETHYLENE FILM AT SPACED INTERVALS IN SAID GROOVE.
References Cited (Backward Citations)
US568515A
Cited
US1132076A
Cited
US1688258A
Cited
US2004041A
Cited
US2294966A
Cited
US2441819A
Cited
US2441679A
Cited
US2585252A
Cited
US2589849A
Cited
US2748863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-25 | 1968-02-24 | 1968-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-25 | 1972-02-24 | 1972-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-25 | 1976-02-24 | 1976-08-25 | $7700.00 | Window Closed / Lapsed |