US3439428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic measuring tapes and methods of making such tapes
Assignee: Cooper Industries LLC
•
Filing: 1964-11-20
•
Granted: 1969-04-22
•
Expires: 1984-11-20
Abstract
No abstract record available.
Inventors
- 👤 Charles Zelnick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:37
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1003; G01B3/1041; G01B2003/1058
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A METHOD OF MAKING A MEASURING TAPE IN WHICH A TAPELINE IS WITHDRAWABLE FROM A OPENING IN A TAPE CASING COMPRISING: COILING A FIRST PORTION OF THE LENGTH OF AN ELONGATED, NARROW, THERMOPLASTIC PLASTIC FILM STRIP IN THE THICKNESS RANGE OF ABOUT .008-.020 OF AN INCH IN PLANAR CONVOLUTION AND HEAT SETTING IT SO THAT THE SAID PORTION WHEN FREE WILL FORM A COIL SPRING HAVING SUBSTANTIALLY ADJACENT ENGAGING CONVOLUTIONS IN SUBSTANTIALLY COMMON PLANE; PROVIDING DIMENSION MARKS FOR THE REMAINING PORTION OF THE STRIP; WINDING THE SAID FIRST PORTION INTO A COIL IN A DIRECTION OPPOSITE TO THE DIRECTION OF WIND SAID FIRST PORTION WILL TAKE WHEN UNRESTRAINED; AND SECURING THE FREE END OF SAID FIRST PORTION WITHIN A TAPE CASING WITH A PART OF THE PRINTED PORTION IN POSITION TO EXTEND OUT THE OPENING IN THE TAPE CASING.
Claim 2
Independent Claim
139 words
A METHOD OF MAKING A MEASURING TAPE IN WHICH A TAPELINE IS WITHDRAWABLE FROM A OPENING IN A TAPE CASING COMPRISING: COILING A FIRST PORTION OF THE LENGTH OF AN ELONGATED, NARROW, THERMOPLASTIC PLASTIC FILM STRIP IN THE THICKNESS RANGE OF ABOUT .008-.020 OF AN INCH IN PLANAR CONVOLUTION AND HEAT SETTING IT SO THAT THE SAID PORTION WHEN FREE WILL FORM A COIL SPRING HAVING SUBSTANTIALLY ADJACENT ENGAGING CONVOLUTIONS IN SUBSTANTIALLY COMMON PLANE; PROVIDING DIMENSION MARKS FOR THE REMAINING PORTION OF THE STRIP; WINDING THE SAID FIRST PORTION INTO A COIL IN A DIRECTION OPPOSITE TO THE DIRECTION OF WIND SAID FIRST PORTION WILL TAKE WHEN UNRESTRAINED; AND SECURING THE FREE END OF SAID FIRST PORTION WITHIN A TAPE CASING WITH A PART OF THE PRINTED PORTION IN POSITION TO EXTEND OUT THE OPENING IN THE TAPE CASING.
References Cited (Backward Citations)
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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) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |