Patent JPS63147674A successfully refreshed from Google Patents.
US3239976A
Expired / Lapsed
US
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Combination window construction
Assignee: Individual
•
Filing: 1963-07-22
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Granted: 1966-03-15
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Expires: 1983-07-22
Abstract
No abstract record available.
Inventors
- 👤 Richard F Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:54
CPC Classifications
E; E06; E06B; E06B3/00; E06B3/04; E06B3/26; E06B3/2605; E06B2003/2615; Y; Y10; Y10S; Y10S49/00; Y10S49/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2703158A
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US2640232A
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US2983001A
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US3080620A
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US3023465A
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US3055468A
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US3081852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |