Patent US2608722A successfully refreshed from Google Patents.
US2608722A
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Process for making microspacers
Assignee: Individual
•
Filing: 1950-09-06
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Granted: 1952-09-02
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Expires: 1970-09-06
Abstract
No abstract record available.
Inventors
- 👤 Otmar M Stuetzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/42; B; B21; B21C; B21C37/00; B21C37/06; C; C03; C03B; C03B23/00; C03B23/04; C03B23/047; C03B23/0473; C03B23/20; C03B23/207; C03B37/00; C03B37/01; C03B37/02; C03B37/025; C03B37/026; C03B37/028; H01J19/44; H10; H10D; H10D99/00; H01J2893/00; H01J2893/0001; H01J2893/0002; H01J2893/0005; Y; Y10; Y10S; Y10S451/00; Y10S451/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49117; Y10T29/49204; Y10T29/49208; Y10T29/4921; Y10T29/49211
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1992678A
Cited
US2287598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-02 | 1956-03-03 | 1956-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-02 | 1960-03-03 | 1960-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-02 | 1964-03-03 | 1964-09-02 | $7700.00 | Window Closed / Lapsed |