US1508974A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic multiple-spindle-machine tool
Assignee: READING AUTOMATIC MACHINE Co
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Filing: 1921-07-30
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Granted: 1924-09-16
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Expires: 1941-07-30
Abstract
No abstract record available.
Inventors
- 👤 Jackson Calvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:43
CPC Classifications
B; B23; B23Q; B23Q39/00; B23Q39/04; B23Q39/042; Y; Y10; Y10S; Y10S470/00; Y10S470/901; Y10S470/904; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/513
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) | 1927-09-16 | 1928-03-17 | 1928-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-09-16 | 1932-03-17 | 1932-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-09-16 | 1936-03-17 | 1936-09-16 | $7700.00 | Window Closed / Lapsed |