Patent US3330709A successfully refreshed from Google Patents.
US3330709A
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Methods of making coilable measuring tape of plastic material
Assignee: Lufkin Rule Co
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Filing: 1965-10-23
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Granted: 1967-07-11
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Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Zelnick Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:30
CPC Classifications
B; B32; B32B; B32B38/00; B32B38/18; B32B38/1866; B29; B29C; B29C53/00; B29C53/02; B29C53/04; B29C65/00; B29C65/48; B29C65/4805; B29C65/483; B29C65/4835; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/45; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C66/73711; B29C66/73715; B29C66/7377; B29C66/73771; B29C66/73772; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/836; G; G01; G01B; G01B3/00; G01B3/10; G01B3/1003; B29C66/71; B29C66/73713; G01B2003/1058; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A METHOD OF MAKING A MEASURING TAPE COMPRISING; BONDING A GENERALLY FLAT PLASTIC STRIP WHICH HAS DIMENSIONAL STABILITY IN THE LONGITUDINAL DIRETION, BUT IS SHRINKABLE IN THE TRANSVERSE DIRECTION AFTER BEING HEATED, TO ANOTHER GENERALLY FLAT STRIP WHICH HAS DIMENSIONAL STABILITY IN THE LONGITUDINAL AND TRANSVERSE DIRECTIONS; AND HEATING THE BONDED STRIPS TO A TEAMPERATURE AT WHICH SHRINKAGE OF THE TRANSVERSELY SHRINKABLE STRIP OCCURS SO THAT SHRINKAGE OF THE TRANSVERSELY SHRINKABLE STRIP CAUSES THE STRIPS TO ASSUME A TRANSVERSE CURVATURE.
References Cited (Backward Citations)
US1964248A
Cited
US2304989A
Cited
US2897546A
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US2994958A
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US3042990A
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US2974370A
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |