US1327641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming metal tubes
Assignee: Individual
•
Filing: 1917-05-12
•
Granted: 1920-01-13
•
Expires: 1937-05-12
Abstract
No abstract record available.
Inventors
- 👤 Frank H Stolp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:15
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; B21C; B21C37/00; B21C37/06; B21C37/10; B21C37/108
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) | 1923-01-12 | 1923-07-14 | 1924-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-01-12 | 1927-07-14 | 1928-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-01-12 | 1931-07-14 | 1932-01-13 | $7700.00 | Window Closed / Lapsed |