US2797614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projection measuring arrangement with transverse scale
Assignee: Individual
•
Filing: 1954-04-14
•
Granted: 1957-07-02
•
Expires: 1974-04-14
Abstract
No abstract record available.
Inventors
- 👤 Heidenhain Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:11
CPC Classifications
G; G01; G01D; G01D7/00; G01D7/02; G01D7/04; G01D7/06; G01B; G01B11/00; G01D5/00; G01D5/12; G03; G03B; G03B21/00; Y; Y10; Y10S; Y10S177/00; Y10S177/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1864895A
Cited
US1775952A
Cited
US1974606A
Cited
US2422611A
Cited
US2188014A
Cited
US2188038A
Cited
US2488351A
Cited
US2638031A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |