Patent US2698504A successfully refreshed from Google Patents.
US2698504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel glass fabric buffer wheel
Assignee: Harvel Research Corp
•
Filing: 1949-12-21
•
Granted: 1955-01-04
•
Expires: 1969-12-21
Abstract
No abstract record available.
Inventors
- 👤 Edwin L Lotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:10
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/08; Y; Y10; Y10T; Y10T428/00; Y10T428/21; Y10T428/218; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1737574A
Cited
US2215061A
Cited
US2390370A
Cited
US2392805A
Cited
US2449572A
Cited
US2494920A
Cited
US2530635A
Cited
US2492498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-01-03 | 1958-07-05 | 1959-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-03 | 1962-07-05 | 1963-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-03 | 1966-07-05 | 1967-01-04 | $7700.00 | Window Closed / Lapsed |