US1360558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing interiorly-cylindrical surfaces having an exact diameter
Assignee: Individual
•
Filing: 1919-12-06
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Granted: 1920-11-30
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Expires: 1939-12-06
Abstract
No abstract record available.
Inventors
- 👤 Mattsson Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:10
CPC Classifications
C; C21; C21D; C21D7/00; C21D7/02; C21D7/04; C21D7/08; B; B24; B24B; B24B39/00; B24B39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/47; Y10T29/49; Y10T29/49636; Y10T29/49703
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) | 1923-11-30 | 1924-05-31 | 1924-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-11-30 | 1928-05-31 | 1928-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-11-30 | 1932-05-31 | 1932-11-30 | $7700.00 | Window Closed / Lapsed |