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US2548488A
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Assignee: Individual
•
Filing: 1947-12-04
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Granted: 1951-04-10
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Expires: 1967-12-04
Abstract
No abstract record available.
Inventors
- 👤 Harry C Mella
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:50
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/06; Y; Y10; Y10S; Y10S362/00; Y10S362/812; Y10S40/00; Y10S40/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1291710A
Cited
US1508182A
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US1729660A
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US1833595A
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US1844542A
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US1957378A
Cited
US2175926A
Cited
US2337567A
Cited
US2501840A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |