US3075253A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partition assembly
Assignee: HAMMITT
•
Filing: 1959-06-05
•
Granted: 1963-01-29
•
Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Andrew B Hammitt
- 👤 Jr Herbert L Birum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:52
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7448; E04B2/7451; E04B2/76; E04B2/78; E04B2/7854; E04B2/7881
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1154622A
Cited
GB179840A
Cited
GB197184A
Cited
US2717093A
Cited
US2730209A
Cited
US2787812A
Cited
US2832101A
Cited
US2853870A
Cited
US2860504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |