US1881448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray method and means
Assignee: FORMELL Corp Ltd
•
Filing: 1928-08-15
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Granted: 1932-10-11
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Expires: 1948-08-15
Abstract
No abstract record available.
Inventors
- 👤 Forde Thomas Hinton
- 👤 Mellars Newton William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:05
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/44; A61B6/4488; A61B6/50; A61B6/51; A61B6/512; H; H01; H01J; H01J35/00; H01J35/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1935-10-11 | 1936-04-11 | 1936-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-10-11 | 1940-04-11 | 1940-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-10-11 | 1944-04-11 | 1944-10-11 | $7700.00 | Window Closed / Lapsed |