US3204374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prefabricated soffit construction
Assignee: NATIONAL ROLLEX CORP
•
Filing: 1961-06-07
•
Granted: 1965-09-07
•
Expires: 1981-06-07
Abstract
No abstract record available.
Inventors
- 👤 James S Hellekson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:14
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/15; E04D13/158; E04D13/152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2690072A
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US2676554A
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US2968128A
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US2896559A
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GB848635A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |