US2856313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of plating quartz crystals
Assignee: Individual
•
Filing: 1955-11-01
•
Granted: 1958-10-14
•
Expires: 1975-11-01
Abstract
No abstract record available.
Inventors
- 👤 Gerber Paul Daniel
- 👤 Jr William Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:52
CPC Classifications
H; H03; H03H; H03H3/00; H03H3/007; H03H3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A METHOD OF PLATING QUARTZ CRYSTALS, COMPRISING THE STEPS OF HEATING THE CRYSTAL TO BE PLATED TO A TEMPERATURE IN THE RANGE BETWEEN 500*C. AND THE INVERSION TEMPERATURE OF SAID CRYSTALS IN AN EVACUATED CHAMBER, PLATING SAID HEATED CRYSTAL IN SAID EVACUATED CHAMBER, AND HEAT TREATING SAID PLATED CRYSTAL IN SAID EVACUATED CHAMBER AT A TEMPERATURE WITHIN SAID RANGE.
Claim 2
Independent Claim
59 words
A METHOD OF PLATING QUARTZ CRYSTALS, COMPRISING THE STEPS OF HEATING THE CRYSTAL TO BE PLATED TO A TEMPERATURE IN THE RANGE BETWEEN 500*C. AND THE INVERSION TEMPERATURE OF SAID CRYSTALS IN AN EVACUATED CHAMBER, PLATING SAID HEATED CRYSTAL IN SAID EVACUATED CHAMBER, AND HEAT TREATING SAID PLATED CRYSTAL IN SAID EVACUATED CHAMBER AT A TEMPERATURE WITHIN SAID RANGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-13 | 1962-04-14 | 1962-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-13 | 1966-04-14 | 1966-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-13 | 1970-04-14 | 1970-10-14 | $7700.00 | Window Closed / Lapsed |