Patent US2525112A successfully refreshed from Google Patents.
US2525112A
Expired / Lapsed
US
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Apparatus for and method of tempering glass articles
Assignee: Hartford Empire Co
•
Filing: 1943-12-03
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Granted: 1950-10-10
•
Expires: 1963-12-03
Abstract
No abstract record available.
Inventors
- 👤 Theodore C Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:12
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/04; C03B27/0404; C03B27/044; C03B27/0442; C03B27/0445; C03B27/048
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE22392E
Cited
US1107072A
Cited
US1483461A
Cited
US1943483A
Cited
US1911119A
Cited
FR680578A
Cited
US1971268A
Cited
DE616445C
Cited
CH180627A
Cited
US2244715A
Cited
GB477156A
Cited
FR806220A
Cited
US2298709A
Cited
FR829655A
Cited
US2254227A
Cited
FR833559A
Cited
GB478811A
Cited
US2182167A
Cited
US2299488A
Cited
US2375944A
Cited
US2376872A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |