US3134176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable curve for drafting
Assignee: Individual
•
Filing: 1961-10-05
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Granted: 1964-05-26
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Expires: 1981-10-05
Abstract
No abstract record available.
Inventors
- 👤 James E Hoyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
B; B43; B43L; B43L13/00; B43L13/20; B43L13/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DRAFTING INSTRUMETN COMPRISING IN COMBINATION, AT LEAST TWO JUXTAPOSED ELONGATGED RESILIENT MEMBERS INHERENTLY BIASED TOI RELATIVELY STRIGHT CONDITION, AND INTERLOCKING MEANS ON SAID RESILIENT MEMBERS PREVENTING LATERAL SEPARATION THEREOF AND PROVIDING LONGITUDINAL FRICTIONAL FORCES THEREBETWEEN THROUGHOUT THEIR ENTIRE LENGHTS FOR OVERCOMING THE INHERENT BIAS OF SAID MEMBERS, WHEREBY SAID MEMBERS WILL REMAIN SUBSTANTIALLY IN ANY CONDITION OF CURVATURE IN WHICH THEY ARE PLACED.
Claim 2
Dependent Claim
64 words
A DRAFTING INSTRUMETN COMPRISING IN COMBINATION, AT LEAST TWO JUXTAPOSED ELONGATGED RESILIENT MEMBERS INHERENTLY BIASED TOI RELATIVELY STRIGHT CONDITION, AND INTERLOCKING MEANS ON SAID RESILIENT MEMBERS PREVENTING LATERAL SEPARATION THEREOF AND PROVIDING LONGITUDINAL FRICTIONAL FORCES THEREBETWEEN THROUGHOUT THEIR ENTIRE LENGHTS FOR OVERCOMING THE INHERENT BIAS OF SAID MEMBERS, WHEREBY SAID MEMBERS WILL REMAIN SUBSTANTIALLY IN ANY CONDITION OF CURVATURE IN WHICH THEY ARE PLACED.
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) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |