US2884510A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constricted arc apparatus and process
Assignee: Union Carbide Corp
•
Filing: 1955-10-17
•
Granted: 1959-04-28
•
Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Glenn W Oyler
- 👤 Iii John Maier
- 👤 Thomas B Reed
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:02
CPC Classifications
B; B23; B23K; B23K10/00; B23K35/00; B23K35/22; B23K35/38; B23K35/383
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
PROCESS OF REMOVING SELECTED METAL FROM A METAL WORKPIECE, WHICH COMPRISES HEATING AND MELTING THE METAL TO BE REMOVED WITH AN EFFUENT CONTAINING 1% TO
Claim 2
Dependent Claim
25 words
PROCESS OF REMOVING SELECTED METAL FROM A METAL WORKPIECE, WHICH COMPRISES HEATING AND MELTING THE METAL TO BE REMOVED WITH AN EFFUENT CONTAINING 1% TO
References Cited (Backward Citations)
US1002721A
Cited
US1298590A
Cited
US1746208A
Cited
US1746191A
Cited
US2284351A
Cited
US2451422A
Cited
US2602871A
Cited
US2640792A
Cited
US2758186A
Cited
US2806124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-27 | 1962-10-27 | 1963-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-27 | 1966-10-27 | 1967-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-27 | 1970-10-27 | 1971-04-28 | $7700.00 | Window Closed / Lapsed |