Patent US2777338A successfully refreshed from Google Patents.
US2777338A
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Attachment for indexing heads
Assignee: Individual
•
Filing: 1950-04-01
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Granted: 1957-01-15
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Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 James R Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:21
CPC Classifications
B; B23; B23Q; B23Q16/00; B23Q16/02; B23Q16/04; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792; Y10T409/308848; Y10T409/308904; Y10T74/00; Y10T74/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US343846A
Cited
US893954A
Cited
US1024254A
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US1477374A
Cited
US1461316A
Cited
GB524950A
Cited
US2309241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |