Patent US2791040A successfully refreshed from Google Patents.
US2791040A
Expired / Lapsed
US
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Map folio
Assignee: Individual
•
Filing: 1953-11-16
•
Granted: 1957-05-07
•
Expires: 1973-11-16
Abstract
No abstract record available.
Inventors
- 👤 Salvatore L Santorelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:22
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/10; Y; Y10; Y10S; Y10S40/00; Y10S40/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US470861A
Cited
DE328140C
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US1421975A
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US1587506A
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US1508692A
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US1613570A
Cited
US2294276A
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US2420673A
Cited
US2655156A
Cited
US2663095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |