US3341371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic method for treating metals
Assignee: Individual
•
Filing: 1966-05-31
•
Granted: 1967-09-12
•
Expires: 1986-05-31
Abstract
No abstract record available.
Inventors
- 👤 Cecil A Baumgartner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:22
CPC Classifications
C; C22; C22F; C22F3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A METHOD FOR TREATING A METAL PART TO ALTER SELECTED PHYSICAL PROPERTIES THEREOF INCLUDING THE STEPS OF (A) HEATING THE PART TO A SELECTED TEMPERATURE ELEVATED ABOVE ROOM TEMPERATURE, (B) COOLING THE PART FROM THE ELEVATED TEMPERATURE TO A SELECTED LOWER TEMPERATURE AT A SELECTED RATE, AND (C) IMPRESSING ON THE PART DURING AT LEAST THE INITIAL PORTION OF THE COOLING STEP AN ELECTROSTATIC CHARGE OF SELECTED MAGNITUDE AND POLARITY.
Claim 2
Independent Claim
70 words
A METHOD FOR TREATING A METAL PART TO ALTER SELECTED PHYSICAL PROPERTIES THEREOF INCLUDING THE STEPS OF (A) HEATING THE PART TO A SELECTED TEMPERATURE ELEVATED ABOVE ROOM TEMPERATURE, (B) COOLING THE PART FROM THE ELEVATED TEMPERATURE TO A SELECTED LOWER TEMPERATURE AT A SELECTED RATE, AND (C) IMPRESSING ON THE PART DURING AT LEAST THE INITIAL PORTION OF THE COOLING STEP AN ELECTROSTATIC CHARGE OF SELECTED MAGNITUDE AND POLARITY.
References Cited (Backward Citations)
US2273819A
Cited
US2853408A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |