Patent US2687978A successfully refreshed from Google Patents.
US2687978A
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US
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Synthetic plastic film tape
Assignee: Individual
•
Filing: 1951-08-09
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Granted: 1954-08-31
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Expires: 1971-08-09
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Vogt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:10
CPC Classifications
B; B65; B65D; B65D63/00; B65D63/10; B65D63/1009; C; C09; C09J; C09J7/00; C09J7/20; C09J7/22; Y; Y10; Y10T; Y10T428/00; Y10T428/15; Y10T428/24; Y10T428/24777
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A TAPE FORMED OF A SYNTHETIC PLASTIC FILM MATERIAL HAVING RELATIVELY HIGH TEAR STRENGTH AND BEING FORMED ALONG AT LEAST ONE EDGE THEREOF WITH A MULTIPLICITY OF PARALLEL SLITS EACH BEING INCLINED AT AN ACUTE ANGLE TO THE EDGE AND EXTENDING INWARDLY THEREFROM, THE ANGULARITY AND LENGTH OF THE SLITS BEING SUCH THAT THE PROJECTION OF THE INNER END OF EACH SLIT UPON THE ADJACENT EDGE OF THE TAPE AT LEAST REACHES THE INTERSECTION OF AN ADJACENT SLIT WITH SUCH EDGE TO FORM WEAKENED POINTS ALONG THE LENGTH OF THE TAPE AT WHICH THE RESISTANCE TO TEAR OF THE TAPE IS SUBSTANTIALLY REDUCED.
Claim 2
Dependent Claim
103 words
A TAPE FORMED OF A SYNTHETIC PLASTIC FILM MATERIAL HAVING RELATIVELY HIGH TEAR STRENGTH AND BEING FORMED ALONG AT LEAST ONE EDGE THEREOF WITH A MULTIPLICITY OF PARALLEL SLITS EACH BEING INCLINED AT AN ACUTE ANGLE TO THE EDGE AND EXTENDING INWARDLY THEREFROM, THE ANGULARITY AND LENGTH OF THE SLITS BEING SUCH THAT THE PROJECTION OF THE INNER END OF EACH SLIT UPON THE ADJACENT EDGE OF THE TAPE AT LEAST REACHES THE INTERSECTION OF AN ADJACENT SLIT WITH SUCH EDGE TO FORM WEAKENED POINTS ALONG THE LENGTH OF THE TAPE AT WHICH THE RESISTANCE TO TEAR OF THE TAPE IS SUBSTANTIALLY REDUCED.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |