US2535494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building structure
Assignee: KINGSMILL
•
Filing: 1944-06-09
•
Granted: 1950-12-26
•
Expires: 1964-06-09
Abstract
No abstract record available.
Inventors
- 👤 Hult Gustav Warner
- 👤 Kingsmill Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:50
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/38; E04B1/41; E04B1/4178; E04B1/4185; E04B1/02; E04B1/08; E04C; E04C1/00; E04C1/40; E04B2/00; E04B2/02; E04B2002/0202; E04B2002/0243; E04B2002/0247
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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FR820650A
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US2137767A
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US2268907A
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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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |