US2484103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection comparator for objects in relation to spaced drawings or reticles
Assignee: Jones and Lamson Machine Co
•
Filing: 1947-08-20
•
Granted: 1949-10-11
•
Expires: 1967-08-20
Abstract
No abstract record available.
Inventors
- 👤 Robert E Lewis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:32
CPC Classifications
G; G02; G02B; G02B21/00; G02B21/0004; G02B21/0016
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1974654A
Cited
US2179799A
Cited
US2155248A
Cited
US2192529A
Cited
US2427256A
Cited
US2393013A
Cited
US2406451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |