US2981426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for placing roof deck slabs
Assignee: OI Glass Inc
•
Filing: 1958-06-12
•
Granted: 1961-04-25
•
Expires: 1978-06-12
Abstract
No abstract record available.
Inventors
- 👤 Harry E Casey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:36
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/52; E01C19/526; E01C19/528; B; B62; B62B; B62B1/00; B62B1/02; B62B1/06; E04; E04G; E04G21/00; E04G21/14; E04G21/16; E04G21/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1376446A
Cited
US1836362A
Cited
US2433754A
Cited
US2626176A
Cited
GB729326A
Cited
US2763388A
Cited
US2693386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |