US2440199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gantry structure
Assignee: Individual
•
Filing: 1945-07-05
•
Granted: 1948-04-20
•
Expires: 1965-07-05
Abstract
No abstract record available.
Inventors
- 👤 William M Huston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:51
CPC Classifications
B; B66; B66C; B66C13/00; B66C13/52; B66C13/54; B66C13/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US294395A
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US335164A
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US1195461A
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US1378981A
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US738080A
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US1101459A
Cited
US1402291A
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US2083460A
Cited
US2139960A
Cited
US2348285A
Cited
US2335858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-20 | 1951-10-20 | 1952-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-20 | 1955-10-20 | 1956-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-20 | 1959-10-20 | 1960-04-20 | $7700.00 | Window Closed / Lapsed |