Patent US3031045A successfully refreshed from Google Patents.
US3031045A
Expired / Lapsed
US
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Structural member for hollow spars, beams, and louver blades
Assignee: Individual
•
Filing: 1958-04-03
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Granted: 1962-04-24
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Expires: 1978-04-03
Abstract
No abstract record available.
Inventors
- 👤 Edward C Hallock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:01
CPC Classifications
B; B64; B64C; B64C3/00; B64C3/18; B64C3/185; B64C1/00; B64C1/06; B64C1/064; B64C1/065; E; E04; E04C; E04C3/00; E04C3/02; E04C3/04; E04C3/10; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/386; B64C2001/0054; B64C2001/0081; E04C2003/0404; E04C2003/0408; E04C2003/0413; E04C2003/0417; E04C2003/0426; E04C2003/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US284824A
Cited
US908127A
Cited
DE585656C
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US2091542A
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US2364494A
Cited
US2382356A
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US2420715A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |