US3223221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper handling mechanism
Assignee: Royal Typewriter Co Inc
•
Filing: 1963-03-13
•
Granted: 1965-12-14
•
Expires: 1983-03-13
Abstract
No abstract record available.
Inventors
- 👤 Ronald H Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:58
CPC Classifications
B; B41; B41J; B41J13/00; B41J13/26; B41J13/28; B41J13/02; B41J13/036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN A TYPEWRITER HAVING A MOVABLE PRINTING POSITION, THE COMBINATION OF LOWER AND UPPER CLOSABLE AND OPENABLE PAPER FEEDING MECHANISMS SERIALLY CLOSABLE TO GRIP AND FEED A SHEET OF PAPER AND LOCATED BELOW AND ABOVE THE MOVABLE PRINTING POSITION, POWER MEANS TO DRIVE SAID UPPER AND LOWER PAPER FEEDING MECHANISM, MEANS RESPONSIVE TO PASSAGE OF THE TRAILING EDGE OF THE SHEET THROUGH SAID LOWER MECHANISM FOR CAUSING SAID LOWER MECHANISM TO OPEN AND THE UPPER MECHANISM TO CLOSE THEREBY POSITIVELY OF EFFECT FEED TO THE TRAILING EDGE OF THE SHEET PAST THE MOVABLE PRINTING POSITION, AND MEANS OPERATED BY SAID UPPER MECHANISM UPON CLOSING THEREOF FOR INDICATING THE SPACE ON THE SHEET BETWEEN ITS TRAILING EDGE AND THE MOVABLE PRINTING POSITION.
Claim 2
Dependent Claim
121 words
IN A TYPEWRITER HAVING A MOVABLE PRINTING POSITION, THE COMBINATION OF LOWER AND UPPER CLOSABLE AND OPENABLE PAPER FEEDING MECHANISMS SERIALLY CLOSABLE TO GRIP AND FEED A SHEET OF PAPER AND LOCATED BELOW AND ABOVE THE MOVABLE PRINTING POSITION, POWER MEANS TO DRIVE SAID UPPER AND LOWER PAPER FEEDING MECHANISM, MEANS RESPONSIVE TO PASSAGE OF THE TRAILING EDGE OF THE SHEET THROUGH SAID LOWER MECHANISM FOR CAUSING SAID LOWER MECHANISM TO OPEN AND THE UPPER MECHANISM TO CLOSE THEREBY POSITIVELY OF EFFECT FEED TO THE TRAILING EDGE OF THE SHEET PAST THE MOVABLE PRINTING POSITION, AND MEANS OPERATED BY SAID UPPER MECHANISM UPON CLOSING THEREOF FOR INDICATING THE SPACE ON THE SHEET BETWEEN ITS TRAILING EDGE AND THE MOVABLE PRINTING POSITION.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |