Patent US2983969A successfully refreshed from Google Patents.
US2983969A
Expired / Lapsed
US
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Building construction
Assignee: Kawneer Co Inc
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Filing: 1957-06-24
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Granted: 1961-05-16
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Expires: 1977-06-24
Abstract
No abstract record available.
Inventors
- 👤 Dan C Muessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:48
CPC Classifications
F; F16; F16B; F16B12/00; F16B12/02; E; E04; E04B; E04B2/00; E04B2/88; E04B2/96; E04B2/967; E06; E06B; E06B3/00; E06B3/54; E06B3/58; E06B3/5807; E06B3/5821; E06B3/5828; E06B3/5835; E06B3/68
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1074702A
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US1863722A
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US2604195A
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US2589517A
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US2700441A
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US2727597A
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US2654452A
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US2762474A
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US2765057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |