US2719544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making finely meshed grids
Assignee: RCA Corp
•
Filing: 1950-01-25
•
Granted: 1955-10-04
•
Expires: 1970-01-25
Abstract
No abstract record available.
Inventors
- 👤 Hirmann Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:02
CPC Classifications
B; B21; B21F; B21F23/00; B21F27/00; B21F27/12; B21F27/121; B21F27/122; B21F27/124; H; H01; H01J; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022; H01J2893/0025
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2371224A
Cited
US384404A
Cited
US400285A
Cited
US592453A
Cited
DE460208C
Cited
US383088A
Cited
US1692529A
Cited
US1897460A
Cited
US1976522A
Cited
US2213585A
Cited
US2328085A
Cited
US2411988A
Cited
US2441228A
Cited
US2503987A
Cited
US2540833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-03 | 1959-04-04 | 1959-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-03 | 1963-04-04 | 1963-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-03 | 1967-04-04 | 1967-10-04 | $7700.00 | Window Closed / Lapsed |