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US2554438A
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Assignee: COMEY
•
Filing: 1946-09-19
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Granted: 1951-05-22
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Expires: 1966-09-19
Abstract
No abstract record available.
Inventors
- 👤 Elbridge F Bacon
- 👤 Charles S Comey
- 👤 Millard F Saxton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:01
CPC Classifications
E; E05; E05C; E05C3/00; E05C3/12; E05C3/16; E05C3/165; E05C3/124; Y; Y10; Y10S; Y10S292/00; Y10S292/45; Y10T; Y10T292/00; Y10T292/08; Y10T292/0801; Y10T292/0803; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1024; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1056; Y10T292/1097; Y10T292/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US333656A
Cited
US712899A
Cited
US1601790A
Cited
US1549470A
Cited
US2062766A
Cited
US2114418A
Cited
US2212563A
Cited
US2264962A
Cited
US2390984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |