Patent US3270852A successfully refreshed from Google Patents.
US3270852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Typewriter erasure mechanism
Assignee: Individual
•
Filing: 1963-02-04
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Granted: 1966-09-06
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Fondiller Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:01
CPC Classifications
B; B41; B41J; B41J29/00; B41J29/26; B41J29/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
IN A TYPEWRITER, A RIBBON VIBRATOR, MECHANISM FOR SHIFTING SAID VIBRATOR, A CARRIAGE RACK, MECHANISM FOR BACK SPACING SAID CARRIAGE RACK, A MANUALLY OPERABLE KEY, A FIRST LINKAGE COUPLING SAID SHIFTING MECHANISM TO SAID KEY FOR RENDERING SAID SHIFTING MECHANISM RESPONSIVE TO THE OPERATION OF SAID KEY, A SECOND LINKAGE COUPLING SAID BACK SPACING MECHANISM A CHARACTER SPACE INTERVAL PLUS BACK SPACING MECHANISM A CHARACTER SPACE INTERVAL PLUS AN OVERTRAVEL PORTION IN RESPONSE TO THE OPERATION OF SAID KEY, AND LOCKING MEANS FOR MAINTAINING SAID KEY OPERATED, SAID LOCKING MEANS BEING ARRANGED TO PERMIT THE PARTIAL RESETTING OF SAID KEY TO RELAX SAID BACK SPACING MECHANISM SAID OVERTRAVEL PORTION.
Claim 2
Dependent Claim
109 words
IN A TYPEWRITER, A RIBBON VIBRATOR, MECHANISM FOR SHIFTING SAID VIBRATOR, A CARRIAGE RACK, MECHANISM FOR BACK SPACING SAID CARRIAGE RACK, A MANUALLY OPERABLE KEY, A FIRST LINKAGE COUPLING SAID SHIFTING MECHANISM TO SAID KEY FOR RENDERING SAID SHIFTING MECHANISM RESPONSIVE TO THE OPERATION OF SAID KEY, A SECOND LINKAGE COUPLING SAID BACK SPACING MECHANISM A CHARACTER SPACE INTERVAL PLUS BACK SPACING MECHANISM A CHARACTER SPACE INTERVAL PLUS AN OVERTRAVEL PORTION IN RESPONSE TO THE OPERATION OF SAID KEY, AND LOCKING MEANS FOR MAINTAINING SAID KEY OPERATED, SAID LOCKING MEANS BEING ARRANGED TO PERMIT THE PARTIAL RESETTING OF SAID KEY TO RELAX SAID BACK SPACING MECHANISM SAID OVERTRAVEL PORTION.
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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) | 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 |