US3469509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal decking
Assignee: HOWARD MEINHARDT CO
•
Filing: 1966-11-15
•
Granted: 1969-09-30
•
Expires: 1986-11-15
Abstract
No abstract record available.
Inventors
- 👤 George Hutchinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:29
CPC Classifications
E; E01; E01C; E01C9/00; E01C9/08; E01C9/083; E01D; E01D19/00; E01D19/12; E01D19/125; E04; E04C; E04C2/00; E04C2/30; E04C2/42; E04C2/427; E01D2101/00; E01D2101/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2294549A
Cited
US2353398A
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US2454307A
Cited
US2642968A
Cited
US2689366A
Cited
US2737093A
Cited
US2773718A
Cited
GB834438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-29 | 1973-03-31 | 1973-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-29 | 1977-03-31 | 1977-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-29 | 1981-03-31 | 1981-09-30 | $7700.00 | Window Closed / Lapsed |