US3092349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spools for business machines
Assignee: Walter Grafton and Son Ltd
•
Filing: 1960-08-09
•
Granted: 1963-06-04
•
Expires: 1980-08-09
Abstract
No abstract record available.
Inventors
- 👤 Corsan George William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:42
CPC Classifications
B; B41; B41J; B41J33/00; B41J33/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A ONE PIECE MOLDED SPOOL FOR A BUSINESS MACHINE, COMPRISING, A HUB, TWO PARALLEL CIRCULAR FLANGES SPACED APART BY SAID HUB, SAID HUB COMPRISING AN INNER CYLINDRICAL WALL EXTENDING BETWEEN SAID FLANGES AND HAVING AN AXIAL LENGTH NOT EXCEEDING THE DISTANCE BETWEEN THE OUTER SURFACES OF SAID FLANGES, SAID INNER CYLINDRICAL WALL DEFINING A BORE ADAPTED TO RECEIVE A SPOOL DRIVE SHAFT, AND AN OUTER CYLINDRICAL WALL COAXIAL WITH SAID INNER CYLINDRICAL WALL AND SPACED THEREFROM, BUT UNITED THEREWITH, BY AT LEAST ONE WEB LYING IN A PLANE PARALLEL WITH THE PLANES WITH WHICH SAID FLANGES LIE, SAID OUTER CYLINDRICAL WALL HAVING AT LEAST ONE APERTURE EXTENDING OVER THE WHOLE OF THE AXIAL LENGTH THEREOF, A RIBBON-ENGAGING PRONG FORMED IN-
Claim 2
Dependent Claim
120 words
A ONE PIECE MOLDED SPOOL FOR A BUSINESS MACHINE, COMPRISING, A HUB, TWO PARALLEL CIRCULAR FLANGES SPACED APART BY SAID HUB, SAID HUB COMPRISING AN INNER CYLINDRICAL WALL EXTENDING BETWEEN SAID FLANGES AND HAVING AN AXIAL LENGTH NOT EXCEEDING THE DISTANCE BETWEEN THE OUTER SURFACES OF SAID FLANGES, SAID INNER CYLINDRICAL WALL DEFINING A BORE ADAPTED TO RECEIVE A SPOOL DRIVE SHAFT, AND AN OUTER CYLINDRICAL WALL COAXIAL WITH SAID INNER CYLINDRICAL WALL AND SPACED THEREFROM, BUT UNITED THEREWITH, BY AT LEAST ONE WEB LYING IN A PLANE PARALLEL WITH THE PLANES WITH WHICH SAID FLANGES LIE, SAID OUTER CYLINDRICAL WALL HAVING AT LEAST ONE APERTURE EXTENDING OVER THE WHOLE OF THE AXIAL LENGTH THEREOF, A RIBBON-ENGAGING PRONG FORMED IN-
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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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |