US3270397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air drafting arrangement
Assignee: Deering Milliken Research Corp
•
Filing: 1964-10-23
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Granted: 1966-09-06
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Expires: 1984-10-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert M Ingham
- 👤 Norman E Klein
- 👤 Richard V Putnam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
D; D01; D01H; D01H5/00; D01H5/18; D01H5/70; D01H5/74; D01H5/26; D01H5/60; D01H5/64; D01H5/645; D01H5/66; D01H5/72; D01H2700/00; D01H2700/245
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A DRAFTING ROLL FOR A DRAFTING SYSTEM COMPRISING: AN ELONGATED ONE-PIECE SOLID SHAFT MEMBER, A PLURALITY OF NARROW ANNULAR GROOVES FORMED IN SAID SHAFT MEMBER, A ONE-PIECE COLLAR MEMBER TELESCOPED OVER EACH OF SAID NARROW ANNULAR GROOVES, SAID COLLAR MEMBERS HAVING AN INTERNAL DIAMETER SUBSTANTIALLY EQUAL TO THE EXTERNAL DIAMETER OF SAID SHAFT MEMBER, A PLURALITY OF NOTCHES IN THE PERIPHERY OF EACH OF SAID COLLAR MEMBERS AND AN APERTURE IN EACH OF SAID NOTCHES PROVIDING COMMUNICATION WITH SAID ANNULAR GROOVE.
Claim 2
Dependent Claim
81 words
A DRAFTING ROLL FOR A DRAFTING SYSTEM COMPRISING: AN ELONGATED ONE-PIECE SOLID SHAFT MEMBER, A PLURALITY OF NARROW ANNULAR GROOVES FORMED IN SAID SHAFT MEMBER, A ONE-PIECE COLLAR MEMBER TELESCOPED OVER EACH OF SAID NARROW ANNULAR GROOVES, SAID COLLAR MEMBERS HAVING AN INTERNAL DIAMETER SUBSTANTIALLY EQUAL TO THE EXTERNAL DIAMETER OF SAID SHAFT MEMBER, A PLURALITY OF NOTCHES IN THE PERIPHERY OF EACH OF SAID COLLAR MEMBERS AND AN APERTURE IN EACH OF SAID NOTCHES PROVIDING COMMUNICATION WITH SAID ANNULAR GROOVE.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |