US2994328A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rod patenting
Assignee: Siemens Industry Inc
•
Filing: 1956-07-20
•
Granted: 1961-08-01
•
Expires: 1976-07-20
Abstract
No abstract record available.
Inventors
- 👤 Lewis Dartrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:33
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/52; C21D9/54; C21D9/56; C21D9/573; C21D9/5732; B; B21; B21B; B21B37/00; B21B37/74; B21B45/00; B21B45/02; B21B45/0203; B21B45/0209; B21B45/0215; B21B45/0224; B21B1/00; B21B1/16; B21B1/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1350618A
Cited
US2111919A
Cited
US2163699A
Cited
US2205182A
Cited
US2309745A
Cited
US2492434A
Cited
US2470540A
Cited
US2436894A
Cited
US2681874A
Cited
US2681793A
Cited
US2661009A
Cited
US2747587A
Cited
US2668701A
Cited
US2725265A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |