US3003794A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lay-in wireway structure or the like
Assignee: Hoffman Engineering Corp
•
Filing: 1959-03-02
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Granted: 1961-10-10
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Expires: 1979-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ronald R Burley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:48
CPC Classifications
H; H02; H02G; H02G3/00; H02G3/02; H02G3/04; H02G3/0406; H02G3/0418; H02G3/0437; H02G3/06; H02G3/0608; F; F16; F16B; F16B2200/00; F16B2200/50; F16B2200/506
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US753714A
Cited
US1992574A
Cited
US1986965A
Cited
GB549840A
Cited
US2917083A
Cited
US2905201A
Cited
US2956587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |