US3093231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversing mechanism and ribbon attachment
Assignee: Individual
•
Filing: 1962-04-23
•
Granted: 1963-06-11
•
Expires: 1982-04-23
Abstract
No abstract record available.
Inventors
- 👤 Walter D Landgraf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:25
CPC Classifications
B; B41; B41J; B41J32/00; B41J33/00; B41J33/14; B41J33/40; B41J33/44; B41J33/51; B41J33/514
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A TYPEWRITER RIBBON AND SPOOL ASSEMBLY, SAID SPOOL INCLUDING A HUB HAVING AN EXTERIOR WALL, SAID WALL HAVING A GAP SUBSTANTIALLY CO-EXTENSIVE WITH THE LENGTH OF SAID HUB AND PARALLEL TO THE AXIS OF SAID HUB WITHIN WHICH EXTENDS A RIBBON ATTACHING ANCHOR ROD SUBSTANTIALLY COEXTENSIVE WITH THE LENGTH OF SAID HUB AND PARALLEL WITH THE AXIS OF SAID HUB, SAID ROD HAVING ONE FREE END AND ONE END ANCHORED TO SAID HUB, AND A RIBBON WOUND ON SAID SPOOL AND INCLUDING A SLIT ADJACENT TO AND SPACED FROM THE END OF SAID RIBBON, SAID SLIT RUNNING OVER THE FREE END OF SAID ANCHOR ROD, WHEREBY A PART OF THE WIDTH OF SAID RIBBON ADJACENT SAID SLIT LIES OVE RSAID ANCHOR ROD EXTERIORLY OF SAID WALL AND THE REMAINING PART OF THE WIDTH OF SAID RIBBON LIES UNDER SAID ANCHOR ROD INTERIORLY OF SAID WALL.
Claim 2
Dependent Claim
145 words
A TYPEWRITER RIBBON AND SPOOL ASSEMBLY, SAID SPOOL INCLUDING A HUB HAVING AN EXTERIOR WALL, SAID WALL HAVING A GAP SUBSTANTIALLY CO-EXTENSIVE WITH THE LENGTH OF SAID HUB AND PARALLEL TO THE AXIS OF SAID HUB WITHIN WHICH EXTENDS A RIBBON ATTACHING ANCHOR ROD SUBSTANTIALLY COEXTENSIVE WITH THE LENGTH OF SAID HUB AND PARALLEL WITH THE AXIS OF SAID HUB, SAID ROD HAVING ONE FREE END AND ONE END ANCHORED TO SAID HUB, AND A RIBBON WOUND ON SAID SPOOL AND INCLUDING A SLIT ADJACENT TO AND SPACED FROM THE END OF SAID RIBBON, SAID SLIT RUNNING OVER THE FREE END OF SAID ANCHOR ROD, WHEREBY A PART OF THE WIDTH OF SAID RIBBON ADJACENT SAID SLIT LIES OVE RSAID ANCHOR ROD EXTERIORLY OF SAID WALL AND THE REMAINING PART OF THE WIDTH OF SAID RIBBON LIES UNDER SAID ANCHOR ROD INTERIORLY OF SAID WALL.
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |