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Patent US2616529A successfully refreshed from Google Patents.
US2616529A
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Building structure
Assignee: ANGUS SNEAD MACDONALD Corp
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Filing: 1945-10-05
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Granted: 1952-11-04
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Expires: 1965-10-05
Abstract
No abstract record available.
Inventors
- 👤 Angus S Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:47
CPC Classifications
F; F24; F24D; F24D5/00; F24D5/06; F24D5/10; E; E04; E04B; E04B5/00; E04B5/48; F24F; F24F7/00; F24F7/04; F24F7/06; F24F7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2084648A
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US2184113A
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US2172771A
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US2279873A
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US2340003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |