US2836696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warming oven for plastic eye glass frames
Assignee: Individual
•
Filing: 1955-10-03
•
Granted: 1958-05-27
•
Expires: 1975-10-03
Abstract
No abstract record available.
Inventors
- 👤 Ottwell W Ratchford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:02
CPC Classifications
B; B29; B29B; B29B13/00; B29B13/02; B29B13/023; B29D; B29D12/00; B29D12/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US787584A
Cited
US1294269A
Cited
US1541375A
Cited
GB513684A
Cited
GB517364A
Cited
US2661645A
Cited
US2710331A
Cited
US2729735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |