US2730302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for stacking strip shingles
Assignee: Individual
•
Filing: 1951-09-18
•
Granted: 1956-01-10
•
Expires: 1971-09-18
Abstract
No abstract record available.
Inventors
- 👤 Deering S Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:31
CPC Classifications
B; B65; B65G; B65G57/00; B65G57/02; B65G57/03; B65G57/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1435353A
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US1669497A
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US1600958A
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US1943500A
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US2087039A
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US2179535A
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US2470926A
Cited
US2523517A
Cited
US2572745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |