US2621999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder
Assignee: Individual
•
Filing: 1950-03-11
•
Granted: 1952-12-16
•
Expires: 1970-03-11
Abstract
No abstract record available.
Inventors
- 👤 Alden Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:14
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2444484A
Cited
US2315348A
Cited
US2380467A
Cited
US2415229A
Cited
US2505779A
Cited
US2495271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |