US2038124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming pressed keys
Assignee: SPX Technologies Inc
•
Filing: 1932-05-04
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Granted: 1936-04-21
•
Expires: 1952-05-04
Abstract
No abstract record available.
Inventors
- 👤 John L Osborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:11
CPC Classifications
B; B21; B21K; B21K1/00; B21K1/04; B21K25/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679; Y10T29/49682; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49934; Y10T29/49936; Y10T29/49938; Y10T29/4994; Y10T29/53; Y10T29/53104; Y10T29/53709; Y10T29/53717; Y10T29/53961; Y10T29/5397
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-04-21 | 1939-10-21 | 1940-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-04-21 | 1943-10-21 | 1944-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-04-21 | 1947-10-21 | 1948-04-21 | $7700.00 | Window Closed / Lapsed |