Patent US2808144A successfully refreshed from Google Patents.
US2808144A
Expired / Lapsed
US
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Carriage retarding mechanism for typewriters or like machines
Assignee: Royal Mcbee Corp
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Filing: 1955-03-04
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Granted: 1957-10-01
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Expires: 1975-03-04
Abstract
No abstract record available.
Inventors
- 👤 Harry L Lambert
- 👤 Carl B Spong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:25
CPC Classifications
H; H01; H01J; H01J25/00; B; B41; B41J; B41J19/00; B41J19/04; B41J19/10; F; F16; F16K; F16K1/00; F16K1/32; F16K1/34; F16K1/42; H01J25/76
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1233532A
Cited
US2283565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-30 | 1961-04-01 | 1961-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-30 | 1965-04-01 | 1965-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-30 | 1969-04-01 | 1969-10-01 | $7700.00 | Window Closed / Lapsed |